It is false that although community composition changes during succession, diversity rarely changes.
Succession is the phenomenon of how the change in the species structure and composition occurs over time. After a point of time, the last community takes over that is irreplaceable and it is known as the climax community. The first species that invades over an empty space is called the pioneer species.
Diversity is the variety if species present in an area over a period of time. It includes varieties from a small microbe to large plants and animals. More is the diversity of an area, more the area is considered to be functional.
To know more about succession, here
brainly.com/question/13015656
#SPJ4
cientist wants to make a DNA fingerprint, and she has used polymerase
ain reaction (PCR). What should her next step be?
A. Obtain a sample.
B. Use restriction enzymes.
C. Run gel electrophoresis.
D. Make a karyotype.
The answer it’s B
Answer: B
In this phase, fragments of the DNA are separated OR segregated based on their sizes. DNA samples are placed in one end of gel and electricity is passed to drag them through the gel. The fragments of DNA are made up of negative charge, that’s why they move across the positive electrode. If this process will continue for long time , DNA will shift off the end of gel. To move through the gel it requires high voltage. If the voltage becomes very high it will lead to melting of gel or smearing of the DNA bands.
Explanation:
Which organelles contribute to synthesizing protein hormones and packaging them into secretory vesicles?
The organelle that contributes to synthesizing protein, hormones and packaging them into secretory vesicles is the Golgi complex.
In the field of science, the Golgi complex can be described as a membrane-bound organelle that is made up of cisternae. The cisternae are arranged in sacks in the Golgi complex
The Golgi complex is actively involved in synthesizing, modifying, and packaging of proteins into vesicles so that they can successfully be transported to their desired locations.
The Golgi complex is present near to Endoplasmic reticulum of a cell so that as soon as the proteins are made, the Golgi complex can carry out the process of processing them.
The Golgi complex is named after the scientist who was known for the discovery of this organelle, Camillo Golgi.
To learn more about the Golgi complex, click here:
https://brainly.com/question/240879
#SPJ4
The nutrition facts panel on a box of crackers indicates that one serving provides 140 calories, with 55 calories coming from fat. calculate the percentage of calories from fat in this product.
The nutrition facts panel on a box of crackers indicates that one serving provides 140 calories, with 55 calories coming from fat which leads to the percentage of 39%.
The formula to calculate the percentage of fat is,
[tex]\frac{55}{140}[/tex] x 100 = 39%Calories- A calorie is a unit of measurement for the amount of energy included in food; more precisely, it is the amount of heat required to elevate one kilogram or one gram of water by one degree Celsius. Five calories are required to raise a kg of water by one degree Celsius, as an instance of a calorie.
To know more about the Calorie, click on the below link,
https://brainly.com/question/22374134
#SPJ4
The emerging field of ______ biology focuses on studying living organisms as a whole as well as understanding the workings of the parts of an organ.
The emerging field of systems biology focuses on studying living organisms as a whole as well as understanding the workings of the parts of an organ.
What is Systems biology?This is defined as the study of the interactions and behavior of the components of biological entities such as atoms, cells etc using computational and mathematical analysis.
This is a newly developed branch of science and it helps scientists to understand the different ways in which organs and molecules work and their overall effect the body system.
This is therefore the reason why systems biology was chosen as the most appropriate choice.
Read more about Systems biology here https://brainly.com/question/545314
#SPJ1
What would happen if
all autotrophic organisms died, leaving only
heterotrophic organisms?
Explanation:
Heterotrophs are defined as organisms that must consume food to obtain nutrients. These include herbivores, carnivores, etc.
Thus, with a planet of only autotrophs (self-feeding organisms) will continue to reproduce and flourish. Eventually, the earth would be full of autotrophs and organism to moderate the population.
However, there are other factors that can moderate population, though it may not be as effective as a heterotroph.
As a result of the nonexistence of heterotrophs, that includes organisms that help recycle the waste in the environment.
For example, there are decomposers that recycle materials. Considered as heterotrophs, without decomposers to recycle nutrients, autotrophs will lack the nutrient to undergo photosynthesis - it would just be organic waste. This will eventually lead to the death of autotrophs.
There is a possibility for mutations to occur that can allow organisms to process the waste by themselves and use the nutrients that's been processed for photosynthesis.
These are just some of the things that can happen without any heterotrophs.
Hope this helps :)
Which type of basic nursing education program graduates the largest number of rns?
Associate degree programs graduate the most nurses today
What is the role of a nurse?Nurses plan and provide medical and nursing care to patients in hospital, at home or in other settings who are suffering from chronic or acute physical or mental ill health. A caring and compassionate nature, and the ability to deal with emotionally charged and pressured situations are important traits of a nurse.
How many types of nurses are there?O.T. Ophthalmic Nursing.Leprosy Nursing.TB Nursing.Psychiatric Nursing.Neurological and Neuro surgical Nursing.Community Health Nursing.Cancer Nursing..What kind of degree is nursing?Following the 12th grade, students can enroll in one of three nursing programs: ANM, GNM, or BSc Nursing. Each has advantages and drawbacks of their own.
To know more about Nurse visit:
https://brainly.com/question/12681285
#SPJ4
any help would be very much appreciated!
The pictures are shown for pathogens which are harmful to human body and 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
Explanation: There are many pathogens that are harmful to people and they are harmful because they use the host machinery to replicate themselves and grow and also damages the host machinery and lyse the cell which in turn reduces the immunity of the host body and also make the host body prone to diseases leading to the early death of host or miserable life.
These pathogens are bacteria, protozoa, fungi, and viruses.
Virus - The viruses are considered as non-living or living depending upon whether they are outside the host cell or inside it as it they are outside they are nonliving and if inside they are living and have genetic material RNA or DNA and a protein coat called capsid.
Bacteria - The bacteria are also unicellular organisms which are prokaryotes and have a cell wall made up of peptidoglycan and can be divided in gram negative and gram-positive bacteria for example Xanthomonas.
Fungi - The fungi are multicellular organisms and have mycelia which is a thread-like structure in the form of a network called hyphae and they produce a different types of spores for their development.
Protozoa - They are microscopic and unicellular organisms and are eukaryotic in nature having complex structure and have complex metabolism and also have cilia for their movements.
So according to this 1st is virus 2nd is fungus 3rd is protozoa and 4th is bacteria.
To know more about this click at https://brainly.com/question/18456055
#SPJ4
If a uranium atom undergoes both alpha and gamma decay, what happens to it? the nucleus loses neutrons. the nucleus loses positrons. the nucleus loses protons. the nucleus loses energy. the nucleus loses electrons.
The correct answers are:
The nucleus loses neutronsThe nucleus loses protonsThe nucleus loses energyWhat is alpha decay?A nuclear process known as "alpha decay" releases a particle made up of two protons and two neutrons when an unstable nucleus transforms to another element. The helium nucleus that is being ejected is known as an alpha particle. Positive charge and a sizable mass characterize alpha particles.What is gamma decay?Gamma decay is a form of radioactivity where some unstable atomic nuclei release extra energy through an electromagnetic mechanism that occurs naturally. Gamma rays—photons or electromagnetic energy packets with an incredibly tiny wavelength—are emitted in the most prevalent type of gamma decay, referred to as gamma emission.To learn more about radioactive decay visit:
https://brainly.com/question/14921881
#SPJ4
The correct answers are:
The nucleus loses neutrons
The nucleus loses protons
The nucleus loses energy
What is alpha decay?
A nuclear process known as "alpha decay" releases a particle made up of two protons and two neutrons when an unstable nucleus transforms to another element.
The helium nucleus that is being ejected is known as an alpha particle.
Positive charge and a sizable mass characterize alpha particles.
What is gamma decay?
Gamma decay is a form of radioactivity where some unstable atomic nuclei release extra energy through an electromagnetic mechanism that occurs naturally.
Gamma rays—photons or electromagnetic energy packets with an incredibly tiny wavelength—are emitted in the most prevalent type of gamma decay, referred to as gamma emission.
The ___________ of the scapula is the point where the medial and lateral borders meet.
The inferior angle of the scapula is the point where the medial and lateral borders meet.
What is the inferior angle of the scapula?The inferior angle of the scapula may be characterized as the lowest portion of the scapula which is significantly covered by the muscles known as latissimus dorsi muscle. It remarkably migrates forwards round the chest when the arm is captured.
The inferior angle of the scapula is directly correlated with the T7, T8, and T9 of the spinous process or spinal level. It typically depends on the source of Gray's anatomy.
Therefore, the inferior angle is constructed by adjoining the medial and lateral borders of the scapula.
Learn more about scapula,
https://brainly.com/question/28272417
#SPJ1
Herbivores must digest cellulose, yet they lack the enzyme cellulase required for the job. How is this challenge overcome?
The answer to the question is Microbes with the ability to breakdown cellulose live in the digestive system.
What is digestive system?The digestive system of the human body is made up of the gastrointestinal tract and additional digestive organs. In order for food to be absorbed and assimilate into the body, it must first be broken down into smaller and smaller components during digestion. Cephalic, gastric, and intestinal phases make up the three stages of the digestive process. Peristalsis is the term used to describe the rhythmic contraction of muscles that starts in the esophagus and travels down the stomach wall and the rest of the gastrointestinal tract.
To learn more about digestive system with the help of given link:
https://brainly.com/question/1615825
#SPJ4
The harrison act required any person in the business of dealing in drugs covered by the act was required to register annually and pay a special annual tax of ______.
Anyone involved in the drug trade who was subject to the Harrison Act was required to register yearly and pay an additional $1 annual tax.
What prohibited by the Harrison Act?Congress passed the Harrison Act, which outlawed cocaine and opiates, in 1914. Alcohol prohibition soon followed, and by 1918, the United States had become a "dry" country. However, it did not indicate that drug use would stop.By whom is the Harrison Act enforced?In the US, a drug division was created. It was the Treasury Department that put a stop to all drug sales. By the middle of the 1920s, there was more demand for pharmaceuticals on the black market, indicating that the Harrison Act had really had an impact on the supply of narcotics.
learn more about Harrison Act here
https://brainly.com/question/10684054
#SPJ4
A technique for determining protein structure that requires crystals of the protein is ___.
A technique for determining protein structure that requires crystals of the protein is X-ray crystallography.
The structure of protein can be of four types: (a) primary structure; (b) secondary structure; (c) tertiary structure and (d) quaternary structure. The primary structure is the most simple one with a linear chain of amino acids. Secondary structure can be alpha helix or beta sheets, tertiary structure is the folded state of secondary structure and quaternary structure is the combination of two or more tertiary structures.
X-ray crystallography is the technique through which the 3-D structure of a protein crystal can be determined. The crustal of protein is a highly purified form. Atomic as well as molecular structure can be determined by this technique.
To know more about X-ray crystallography, here
brainly.com/question/14617319
#SPJ4
Which test uses a vaginal fluid specimen to differentiate amniotic fluid from urine and other body fluids?
Fern test uses a vaginal fluid specimen to differentiate amniotic fluid from urine and other body fluids.
What is fern test?When a specimen is allowed to dry on a glass slide and then studied under a low-power microscope, the term "fern test" refers to the detection of a distinctive "fern like" pattern of vaginal secretions. In obstetrics, the fern test is most frequently used to show that amniotic fluid is present and is used to identify preterm premature rupture of membranes and/or the start of labor. Despite not being able to anticipate when ovulation would occur, it may also offer indirect proof of ovulation and fertility. Though the 'ferning' pattern of the amniotic fluid is different from that of cervical mucus, the sodium chloride level of the amniotic fluid released by the fetal kidneys may be a sign that a membrane rupture has taken place.Learn more about the amniotic fluid with the help of the given link:
https://brainly.com/question/4258741
#SPJ4
Temporary storage sites in the cytosol for substances such as pigments or nutrients are called?
Temporary storage sites in the cytosol for substances such as pigments or nutrients are called inclusions.
Pigments are the compounds that have a certain color and provide color to other structures indie the body. For example in plants chlorophyll is the pigment that provides green color to the leaves and stem. In humans and other animals, the blood consists f red colored pigment called hemoglobin.
Inclusions are the non-living objects inside the cell. They can be anything like pigments or any other molecules, that performs no function inside the cell. They are also called ergastic substances and do not even have any membrane.
To know more about pigments, here
brainly.com/question/12237673
#SPJ4
Each peak in the waveform corresponds to a different _______.
Each peak in the waveform corresponds to a different Length fragment into reaction.
What does a waveform mean?Alternating current (AC) waveforms show how AC changes over time. The sine wave, which gets its name from how the current or voltage varies with the sine of the passing time, is the most well-known type of AC waveform.
What waveform is the output?A sinusoidal input at the terminal for non-inverting input. the input terminal for the inverting device's ground voltage. As far as we are aware, the sinusoidal signal is positive for one half cycle and negative for the next. The output will fluctuate between + Vcc and -Vcc. Consequently, a square wave will be the result.
What are the three types of waveforms?Independent output terminals simultaneously provide access to the sinusoidal, triangular, and square waveform outputs.
To know more about Waveform visit:
https://brainly.com/question/6036525
#SPJ4
What is an example of a closed system?
1.An estuary where fresh and ocean water mix
2.A living single-celled organism such as a phytoplankton
3.A river that flows into the ocean
4.Water being heated in a pot with a lid
The example of closed system is water being heated in a pot with a lid. The correct option is 4.
What is a closed system?A closed system is a innate physical system that does not aid the transfer of matter into or out of the system, though energy transfer is permitted in contexts including physics, chemistry, and engineering.
A closed system on the earth is a heating water container with a lid. The only energy transfer occurs with the environment, not with the water.
Other examples encompass a simple water bottle or a closed frying pan, among others.
Thus, the correct option is 4.
For more details regarding closed system, visit:
https://brainly.com/question/14782983
#SPJ1
Answer:
The answer is D - Water being heated in a pot with a lid.
Explanation:
Closed systems are similar to open systems in a way; energy can enter and leave freely, however, unlike in open systems, matter cannot enter or leave a closed system. The Earth is a good example of this. The outer edge of the Earth's atmosphere acts as a boundary between the system, Earth, and the surroundings, or space. Energy is transferred between Earth and its surroundings, think solar, but matter does not enter or leave, unless you count the rare exceptions in which a meteor crashes into the earth or when a space shuttle leaves the Earth.
-Sketch the difference between animal cell and plant cell.
One of the main arguments that animal rights advocates present is that animals have rights because they __________.
One of the main arguments that animal rights advocates present is that animals have rights because they are capable of suffering.
What is animal rights?
Animals surely deserve to live their lives freely without suffering and exploitation. Animal rights are moral principles formed in the belief that non-human animals deserve the ability to live as they wish, without being subjected to the desires of human beings. The animal rights movement strives to make the public aware about the fact that animals are sensitive, emotional, and intelligent beings who also deserve dignity and respect.
To learn more about animal rights, click the given link https://brainly.com/question/19953671
#SPJ4
What is homeostatic imbalance?
Answer: An homeostatic imbalance is where the body is unable to restore a functional, stable internal environment in oneself.
Explanation: the word "homeostatic" comes from homeostasis which means to keep the body in normal conditions like your body temperature (making sure it's not too high or low) and fluid balance (ex; your water intake). And for the word "imbalance" it means the opposite of balance which will mean it's abnormal and unstable.
Cell membranes can regulate the transport of materials into and out of the cell. thus, cell membranes are said to be:______
Cell membranes can regulate the transport of materials into and out of the cell. thus, cell membranes are said to be selectively permeable.
What is cell membrane ?A cell membrane, often referred to as a plasma membrane, is present in every cell and serves as a barrier between the interior of the cell and the outside world. The cell membrane is a lipid bilayer that is semipermeable. The cell membrane regulates the flow of substances into and out of the cell.
How does the cell membrane regulate transport?The transport of substances into and out of cells is regulated by the cell membrane, which is selectively permeable to ions and organic molecules. The cell membrane's primary job is to shield the cell from its environment. It is made up of a phospholipid bilayer with proteins incorporated into it.
To know more about plasma visit :
https://brainly.com/question/18207038
#SPJ4
A property that is common to all microbial cells is _____________. evolution communication between cells differentiation genetic exchange between cells motility
A property that is common to all microbial cells is evolution.
The term microbial cells include wide variety of micro organisms which can be bacteria, virus, fungi, algae, protist etc. The process of evolution is an important process for all the living organisms in order to survive. The evolution includes variation in genetic data that is evident in the form through mutation, transfer and reduction.
Communication between cells is common in bacteria and is a well-researched topic by scientists. The term for the process is quorum sensing and is responsible for biofilm formation, which causes problems in health and other industries. Motility and genetic exchange is not common in various organisms.
Learn more about evolution -
https://brainly.com/question/4207376
#SPJ4
HELP ME ASP I WILL GIVE YOU BRAINLEST AND MORE POINTS HELP ASPPP
(6) The two true statements which describe the mass of an atom's subatomic particles are:-
An electron has a mass of 1/2000 amu (atomic mass unit).A neutron and a proton each have a mass of 1 amu.(7) The three true statements are:-
A neutral atom has the same number of electrons and protons.The building blocks of all matter are atoms.Stuff that takes up space and has mass is known as matter.Atoms are composed of three subatomic particles, i.e. protons, neutrons as well as electrons. Protons are positively charged particles, neutrons are electrically neutral particles whereas, electrons are negatively charged particles.
To learn more about electron here
https://brainly.com/question/1255220
#SPJ1
The salivary glands, liver, gallbladder, and pancreas produce ________ secretions that flow into the gi tract through various ducts.
The salivary glands, liver, gall bladder, and pancreas produce digestive secretions that flow into the GI tract through various ducts.
Salivary glands are responsible for production of saliva in the mouth. The saliva contains lysozyme that protects the body from any harmful pathogens, keep the mouth moist and also aid in chewing and softening of food. There are three salivary glands: parotid, sublingual and submandibular.
Pancreas is the largest gland of the human body. It is mixed gland that serves endocrine as well as exocrine functions. The exocrine secretions are of the digestive enzymes. Whereas the endocrine secretion include the hormones insulin and glucagon.
To know more about pancreas, here
brainly.com/question/12977754
#SPJ4
Antibiotic resistance genes in bacteria can be transferred by ______ gene transfer.
Horizontal
Antibiotic resistance genes in bacteria can be transferred by horizontal gene transfer.
What is horizontal gene transfer?The dissemination of antibiotic resistance genes among bacteria (aside from those that are passed from parent to child) is a result of horizontal gene transfer (HGT), which also promotes the evolution of pathogens.How do genes for antibiotic resistance function?Once a bacteria has acquired a resistance gene and incorporated it into its DNA, the bacterium can dominate other bacteria and convey the resistance gene to all of its offspring. Bacteria reproduce quickly, which amplifies resistance.What three kinds of horizontal gene transfer do bacteria engage in?Bacteria can transfer genes horizontally through transformation, transduction, and conjugation. Conjugation is the most prevalent method of horizontal gene transfer among bacteria, particularly from one donor bacterial species to another.Give an example for horizontal gene transfer?In multicellular organisms, horizontal gene transfer can happen in a number of different ways. For instance, in plants, HGT can function naturally through host-parasite interactions. By serving as a vector, the parasite spreads mitochondrial DNA between two different plant species.To learn more about antibiotic resistance visit:
https://brainly.com/question/21476329
#SPJ4
Using nitrogen-fixing sobean crops to add nitrogen to degraded soils is an example of?
Biological augmentation
Using nitrogen-fixing soybean crops to add nitrogen to degraded soils is an example of Biological augmentation.
What is biological augmentation?The process of accelerating the breakdown of a pollutant through the addition of archaea or bacterial cultures is known as biological augmentation. It's possible that organisms from contaminated locations can already break down garbage, but possibly slowly and inefficiently.What is an example of biological enhancement?Systems that use biofiltration are frequently employed to remove toxins from soil or groundwater. Treatment ponds, slow sand filters, and bioswales are a few types of biofilters.What purpose does biological enhancement serve?The best part of this addition is that it is natural and enhances the quality, clarity, and reduction of organic sediments (muck) that build up over time on the bottom of a body of water. Clean-Flo is a pioneer in the stimulation of native microorganisms in addition to the addition of microbes.
To learn more about biological augmentation visit:
https://brainly.com/question/10453445
#SPJ4
select the true statement(s) about microbes. to be marked correct, you'll need to select all true statements, as there may be more than one correct answer.
The true statements about microbes are: (1) Viruses and prions are considered microbes; (2) Some microbes are visible to the unaided eye.
Microbes are the tiny microorganisms that can only be visualized under the microscope. They are not visible to the unaided eyes. The microorganisms can range from bacteria, viruses, protozoans, etc. The microorganisms are harmful to the living organisms, however, there are various useful bacteria as well.
Viruses are those microbes that do not follow the cell theory. Hence they are called the acellular organisms. Viruses can be dead/inactive outside the living body, but once inside any host they become activated.
The question is incomplete, the complete question is:
Select the true statement(s) about microbes. to be marked correct, you'll need to select all true statements, as there may be more than one correct answer.
Viruses and prions are considered microbes.Some microbes are visible to the unaided eye.Most microbes are pathogens.The domain Archaea does not include microbes.To know more about viruses, here
brainly.com/question/13588519
#SPJ4
Some scientists believe that viruses can be considered living, as they have some characteristics of life, while others believe viruses
cannot be considered living because they do not have all characteristics of life. According to your Biology Now textbook, in which case
do viruses display a characteristic of life?
Choose one:
O A. Viruses do not metabolize themselves, but they can change the metabolism of a host cell.
O B. Viruses do not maintain homeostasis themselves, but instead rely on host cells to maintain conditions.
O C. Viruses do not have cells of their own, but can use the cell machinery of a host cell to reproduce.
O D. Viruses do not evolve individually, but populations of them can evolve within a host, as viruses reproduce
after infecting the host.
Answer:
Explanation:
Virus is a living thing
No, viruses are not alive.
Hope this helps :)
What type of analysis put a stop to the fbi relying on microscopic hair comparisons?
The correct answer for this question is Mitochondrial DNA.
Although the FBI has acknowledged its shortcomings, it still views microscopic hair analysis as valid and currently utilizes it in conjunction with more reliable DNA tests.
Forensic scientists use mitochondrial DNA (mtDNA) analysis when samples such as teeth, bones, and hairs without a follicle (root) are collected from crime scenes or disaster areas. MT DNA is also used when nuclear DNA is present in small amounts or is highly degraded and does not provide a complete STR profile.
To know more about Hair Analysis, click here:
https://brainly.com/question/19740933
#SPJ4
Which procedure provides a quick preliminary diagnostic reference but is not 100 percent reliable?
Frozen section procedure provides a quick preliminary diagnostic reference but is not 100 percent reliable.
The frozen section is what?A piece of tissue that has been rapidly cooled using a cryostat is referred to as a frozen section. It is a crucial component that hospitals require in order to help with lesion diagnosis and the size of the lesion during surgery.What is the name of a frozen section?A particular kind of biopsy process called a frozen section examination enables a surgeon to make a quick diagnosis of a suspicious tumor while performing surgery. Cryosection is the formal term for this process.What benefits do frozen sections offer?The frozen section biopsy can aid in confirming that the bulk being removed actually represents the tissue that is being removed. It can aid in ensuring the removal of the entire mass and its surrounding borders. It enables the proper tissue sample collection for ongoing scientific investigation.To learn more about frozen section visit:
https://brainly.com/question/10531055
#SPJ4
Which solution (s) is/are hypotonic? Check all that apply.
iodine
distilled water
0.85% normal saline
water from Elodea dish
10% saline
The solution which is hypotonic is referred to as 0.85% normal saline and is denoted as option C.
What is a Hypotonic solution?This is referred to as a type of solution which has a lower amount of solutes when compared to other solution and also has a lower osmotic pressure than another solution when comparison is done.
On thew other hand, hypertonic solution has a higher amount of solutes when compared to other solution and an example is 10% saline which means Sodium chloride is more abundant in the solution.
Examples of hypotonic solution include 0.85% normal saline while isotonic solution has same or equal concentration and examples include iodine,distilled water etc which is therefore the reason why option C was chosen as the correct option.
Read more about Hypotonic solution here https://brainly.com/question/122954
#SPJ1