The tall ferns that we typically see in the tropics and temperate woodlands are the Sporophyte. The diploid multicellular organism or generation of a plant that begins with a diploid zygote and develops haploid spores through meiotic division – compare gametophyte.
A sporophyte is defined as a mature stage in the life cycle of plants and some algae that produces spores. A mature fern plant is an example of a sporophyte. Sporophyte is a diploid, multicellular plant organism that develops from the fusing of haploid male and female gametes. As a result, two tropics haploid structures unite to form a diploid structure known as the sporophyte.
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Which technique of studying the brain involves injecting the patient with radioactive glucose?
PositivePositive emission tomography (PET) scan technique of studying the brain involves injecting the patient with radioactive glucose.
What is a PET technique?Positron emission tomography (PET) is a type of nuclear medicine procedure that measures metabolic activity of the cells of body tissues. PET is actually a combination of nuclear medicine and biochemical analysis.
A PET technique can be used to find the malignant tumor cells or diagnose condition like epilepsy.
A small amount of radioactive glucose is injected into the veins.
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explain how atp is formed and broken down in the body
Answer:
ATP is able to power cellular processes by transferring a phosphate group to another molecule (a process called phosphorylation). This transfer is carried out by special enzymes that couple the release of energy from ATP to cellular activities that require energy.
In medicine, a complete living entity capable of independent existence is called a/an: _______
a. animal
b. organism
c. human being
d. creature
e. man
In medicine, a complete living entity capable of independent existence is called an b.organism.
In the field of medicine, an organism can be described as a living, independent entity. An organism is made up of one or more than one cells. Hence, the correct option is b. organism.
An organism can show the seven basic life principles. They can show movement. They can reproduce. They can show sensitivity to various stimuli. They can respire. They can carry out the process of excretion. They use nutrition as a source of energy and they can grow.
An organism has an organized structure that helps in the maintenance of the organism.
Other options, such as option c, is not correct as although the human being is a complete living entity but all other organisms also fall under this criteria. Human beings are organisms.
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One of the serous membranes is thicker than the other serous membranes and contains a lot of fat. which membranes so you think is thicker and why?
Golgi membrane is thick because membrane thickness play a key role in protein function .
What is serous membrane and its function?Serous membrane is a smooth tissue membrane of mesothelium lining the content and inner walls of body cavities, which secrete serous fluid to allow lubricating sliding movement between two surfaces.
Serous fluid lubricates the membrane and reduces the friction and abrasion when organs on the thoracic or abdominopelvic cavity move against each other or the cavity wall.
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A muscle fiber will respond to a stimulus when that stimulus reaches the __________ level. recruitment resting rigor mortis threshold relaxation
When an external stimulus crosses the threshold, a muscle fibre will respond.
The level of the thresholdFor the identification of the electrical activity carried out by the active muscles, the threshold level is a crucial consideration. A portion of the electrical activity carried out by the target muscles may be excluded if the chosen threshold level is higher than the overall activity.What is the stimulus threshold for muscle contraction?A certain stimulus magnitude is necessary for muscle contraction. The threshold stimulus is the smallest amount of force needed for a stimulus to cause a muscle to contract in response.If the stimulus intensity is less than this threshold value, there is no response.learn more about threshold here
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Found in the urinary bladder, __________ resembles __________, but the apical cells are rounded, not flattened.
Transitional epithelium found in the bladder resembles stratified squamous epithelium, but the apical cells are rounded, not flattened.
Transitional epithelium- The bladder's lining consists of the transitional epithelium. These structures make up the urinary bladder tissues and are in charge of giving the bladder the necessary tensile properties. This is because the building serves as the body's organ for storing pee.
Squamous Epithelium- Multiple layers of epithelium are used to create the stratified squamous epithelium, and squamous cells are used to create the top epithelial structure.
Since the stratified squamous epithelium contains flattened cells on the epithelial area, the transitional epithelium differs in having apical cells with rounded tops.
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Identification of bacteria in the laboratory usually begins with the ________ for placement in one of two large groups of bacteria.
Identification of bacteria in the laboratory usually begins with the gram stain for placement in one of two large groups of bacteria.
A gram stain is a rapid laboratory test used to detect the presence of bacteria that cause an infection.
By doing a gram stain test we can identify whether the bacteria have a positive or negative charge, so that if the result of the gram stain is red, the bacteria are gram-negative.
What is a bacteria?It is a microorganism formed by a single cell, of small size. Its cellular structure is prokaryotic and it is characterized by not having a nucleus.
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Which disorders have a known chromosomal inheritance pattern? select all that apply.
A. down syndrome
B. turner syndrome
C. marfan syndrome
D. fragile x syndrome
E. edwards syndrome
The disorders which have a known chromosomal inheritance pattern include the following:
Down syndromeTurner syndrome.Fragile x syndrome.What is Chromosomal disorder?This is referred to any type of syndrome which is characterized by malfunctions in the body system as a result of the abnormal number of chromosomes present.
Down syndrome is characterized by three copies of chromosome 21 being produced.Turner syndrome affects only females and is characterized by the X chromosome being absent fully or partially. On the other hand, fragile x syndrome occurs as a result of a mutations in a gene on the X chromosome.
This is therefore the reason why options A, B and D were chosen as the most appropriate choice.
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How does the bottleneck effect undermine the effort of conservation biologists who are trying to save species nearing extinction?.
Bottleneck effect helps the biologists to save species nearing extinction because it helps in reestablishment of the species.
Specified, widespread violence or purposeful culling, human population planning, and other human actions such as famine, earthquakes, floods, fires, disease, and droughts can all cause population bottlenecks. Population bottlenecks can also occur owing to genetic bottlenecks. Such occurrences can lessen the genetic variety of a community, leaving just a smaller population to transmit genes to future generations of offspring through sexual reproduction.
from such a small population by continuously breeding and providing good environment the again flourishment of the species can take place.
Thus, this small population is now taken care of by biologist so that the proper sexual reproduction can take place and thus the population is maintained and thus conservation takes place.
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Multiple lines of evidence indicate that complex multicellularity evolved at least six different times. which of the superkingdoms includes organisms that exhibit complex multicellularity?
Opisthokonta, Archaeplastida, Stramenopila from the superkingdoms includes organisms that exhibit complex multicellularity.
Complex multicellularity appeared comparatively late in life's history, in the Ediacaran Period, more than three billion years after microbial life began to diversify. Plants, animals, and macroscopic fungus form terrestrial landscapes, while creatures and seaweeds animate the water. Complex multicellularity is the most sophisticated degree of biological structure and has only occurred a few times in metazoans, green plants, brown and red algae, and fungus. Opisthokonta, Archaeplastida, and Stramenopila are the superkingdoms with creatures that display complex multicellularity. Opisthokonts are eukaryotic groupings that comprise amoebae, fungi, and mammals. The photoautotrophic red algae, green algae, land plants, and the small group glaucophytes comprise the Archaeplastida, a large group of eukaryotes. Stramenopiles are eukaryotes categorized as protists because they are not fungi, animals, or plants.
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Which of the following statements is correct?
Ribosomes are the largest organelles in a cell
Ribosomes are surrounded by a membrane
Ribosomes are the powerhouse of the cell
Ribosomes are found both in prokaryotic and eukaryotic cells
Answer: D Ribosomes are found both in prokaryotic and eukaryotic cells
Explanation:
Answer:
d) Ribosomes are found both in prokaryotic and eukaryotic cells
Explanation:
I did the k12 test and got a 100.
Hope It Helps
What is the name of a chemical that is used only on inanimate objects and cannot be safely ingested as antimicrobial?
a. antiseptic gel
b. antibiotic
c. antibody
d. sanitizer
A chemical that is used only on inanimate objects and cannot be safely ingested as antimicrobial is sanitizer
Sanitizers are the chemicals used to destroy the disease causing pathogens from the inanimate objects. These substances are generally bleach like or different proportion alcohol solutions. The basic way they work is by dissolving the protein layer of the microbe and exposing its content leading to its death.
These sanitizers may also contain some essential oils to aid the skin in staying hydrated and not dry when used. During the corona times it helped to prevent the spread of virus as people regularly used it to get rid of any germs.
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Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the ________.
Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the latch state.
What is muscle contraction?Muscle contraction is defined as an action potential travels along the nerves to the muscle. The beginning of muscle contraction occurs with signal generated from the nervous system. There are mainly two types of muscle contraction and the situation occur when a muscle contracts and a change in size takes place.
Isotonic concentric contraction is the type of muscle contraction in which muscle shortening takes place. Isotonic eccentric contraction is the type of muscle contraction in which the muscle lengthening whilst it is under tension.
Therefore, Smooth muscle fibers can sustain a contraction without fatigue by allowing dephosphorylated myosin to remain attached to actin in what is called the latch state.
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Which element is a component of all proteins, all nucleic acids, chlorophyll, and is the primary component of air?
Nitrogen is a component of all proteins, all nucleic acids, chlorophyll, and is the primary component of air.
Since plants require nitrogen in the biggest amount of all other significant nutrients, it is the nutrient that limits crop productivity that is mentioned the most frequently. Nitrogen is a component that every amino acid needs to be functional. Proteins are composed of amino acids.Nitrogen is a component of nucleic acids, which make up the DNA of all living things and contain the genetic code.Nitrogen is present in chlorophyll, which is where carbs are created (photosynthesis). Chlorophyll is the substance that gives plants their green hue.Photosynthesis moves along quickly when nitrogen levels are sufficient.A plant usually grows swiftly if it obtains enough nitrogen. The leaves will also begin to turn a dark green color.Learn more about the Nitrogen cycle with the help of the given link:
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Label the following statements as either true or false.
Some enzymes remove single amino acids from proteins by beginning at the amine or N-terminus.
a. True
b. false
It's true some enzymes remove single amino acids from proteins by beginning at the amine or N-terminus.
How enzymes work ?Enzymes play a crucial role in reducing a reaction's activation energy, or the amount of energy required for the reaction to start. Enzymes function by attaching to reactant molecules and holding them so that chemical bond-forming and bond-breaking reactions proceed more quickly.
How do enzymes work in digestion ?The breakdown of the food you eat is greatly aided by digestive enzymes. These proteins quicken chemical processes that change nutrients into things your digestive system can absorb. Digestive enzymes are present in your saliva. Your pancreas, gallbladder, and liver are a few of the organs that release them.
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What would be the benefit of a controlled lab experiment versus an observational field study? what are the benefits of using a model?
The fundamental benefit of conducting experiments as opposed to observational research is that a well-conducted study may provide solid proof that the intervention actually produced the desired outcome. Two or more groups may be compared in an experiment.
What distinguishes an observational research from a controlled experiment?In an observational research, participants are measured or surveyed without any attempt to influence them. In a controlled experiment, participants or objects are divided into groups, and one group is given a treatment while the other is not.
Strength: Due to the natural environment of a field experiment, behaviour is more likely to represent actual life, giving it better ecological validity than a lab experiment.
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Of all six technologies that wood identifies, which do you find the most interesting, useful, or pertinent to your own life? discuss.
orbital launch vehicles are the most interesting, useful, or pertinent to your own life.
What is a launch vehicle?A launch vehicle or carrier rocket may be a rocket-propelled vehicle used to carry a payload from Earth's surface to space, usually to Earth's orbit or beyond. A launch system includes the launch vehicle, launch pad, vehicle assembly, fueling systems, range safety, and other related infrastructure. Orbital launch vehicles are often grouped based on many different factors, most notably payload mass, although price points are a serious concern for some users.
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Identify the letter that indicates a flexible tube that has c-shaped cartilaginous rings that keep it from collapsing.
'E' letter for Trachea indicates a flexible tube that has c-shaped cartilaginous rings that keep it from collapsing.
There are many cartilage rings in a typical trachea (windpipe) (a strong and flexible tissue). These C-shaped rings give your child's trachea support while enabling it to bend and move naturally during breathing.These rings are O-shaped rather than C-shaped due to a congenital anomaly known as full tracheal rings. Your youngster may get aberrant windpipe thinning and airway stenosis as a result. The trachea has between 16 and 20 rings. This cartilage defect may have an influence on any number of those rings. While some kids with full tracheal rings may at first only show minor breathing issues, other kids might be in serious respiratory distress.Learn more about the Trachea with the help of the given link:
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Describe the functions of the brain and the spinal cord. how are these functions similar? how are these functions dissimilar?
Brain- The brain is a sophisticated organ that manages every bodily function as well as cognition, memory, emotion, touch, motor skills, vision, respiration, temperature, and hunger.
Spinal Cord- It connects our brain to our lower back. Our spinal cord carries nerve signals from our brain to our body and vice versa. These nerve signals help you feel sensations and move our body.
Similarity
The meninges protect and cushion the spinal cord, much like they do the brain. Most of the nerves in the body are connected to the brain through spinal nerves. The eyes, ears, and other components of the head are connected to the brain via various nerves.
Dissimilarity
The majority of bodily functions are managed by the brain, which is situated inside the skull. The spinal cord is a tube-shaped organ that extends from the base of the brain to the base of the spine. The nerves that make up the spinal cord transmit data from the brain to the rest of the body.
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PRETTY PRETTY PLEASEEEEEE HELP
What does the term "homeostasis" mean?
Question 2 options:
respond to their environment
maintain a stable internal environment
made up of units called cells
based on a universal genetic code
Answer:
Homeostasis has become the central unifying concept of physiology and is defined as a self-regulating process by which an organism can maintain internal stability while adjusting to changing external conditions.
Explanation:
so the answer is, maintain a stable internal environment
What was done to overcome the problem of the MSL landing?
1. A pulley system was created
2. A parachute was used
3. A tether and roper were used
4.More airbags were used
The spacecraft descended on a parachute, then during the final seconds before landing, the final landing system was a tether and rope!
2. A parachute was usedWhat is MSL?Mars Science Laboratory is a designation of a NASA space probe, launched on November 26, 2011, carrying inside a robot named Curiosity, a rover similar to the Spirit and Opportunity vehicles, used in the Mars Exploration Rover space mission for the planet exploration.
To solve the problem, engineers designed the kit to cut the parachute and use rockets for the final part of the landing sequence. About 60 feet (18 m) above the surface, the MSL's "sky crane" was deployed. The landing assembly hung the rover below the rockets using a 6 m rope.
With this information, we can conclude that A parachute was used to overcome the problem of the MSL landing
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Determine whether the given procedure results in a binomial distribution. if not, give the reason why not. toss a coin, and record the number of tosses until the first head
Yes it is a binomial distribution
The binomial distribution was the sum of the series of the multiple independent and the identically distributed Bernoulli trials. In the Bernoulli trial, the experiment was said to be random and they can only have two possible outcomes: the success or the failure. the Binomial distribution is the common probability the distribution was that models the probability of to obtaining the one of two outcomes and under a given number of the parameters. It is summarizes the number of the trials when each trial has to be the same chance of the attaining one of the specific outcome. The binomial distribution was model allows us to compute the probability of the observing the specified number of "successes" when the process is also repeated a specific number of the times (e.g., in a set of patients) and the outcome for the given patient is either the success or a failure
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The monosaccharides and the disaccharides are designated as _____ because they provide calories.
The monosaccharides as well as the disaccharides are designated as nutritive sweeteners since they provide calories.
Nutritive sweeteners, which are also sometimes termed as caloric sweeteners supply energy in the form of carbohydrates. A few nutritive sweeteners are naturally present in foods such as fructose, which is found in fresh fruits.
Monosaccharides are the simplest sugars or carbohydrates having the general formula (CH₂O)ₙ and are generally colorless, water soluble, crystalline solids. Glucose, fructose as well as galactose are all examples of monosaccharides.
Disaccharides are made up of two monosaccharides which are linked together by means of a glycosidic bond. They are also soluble in water. The examples of disaccharides are sucrose, lactose as well as maltose.
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Early one december morning, vanessa was waiting for the bus. vanessa was wearing a sewatshirt. she put her hands in her pockets and walked back and forth, yet by the time the bus arrived she was shivering. what is shivering an indication of? what will it do?
Answer:
Shivering is a response to matain homeostasis
Explanation:
The initial stage of atherosclerosis is characterized by accumulation beneath the endothelium of excessive amounts of?
The initial stage of atherosclerosis is characterized by accumulation beneath the endothelium of excessive amounts of LDL.
The accumulation of lipids, cholesterol, and other chemicals in and on the artery walls is known as atherosclerosis. The accumulation is known as plaque.The build-up of lipids and fibrous components in the major arteries is a hallmark of the degenerative illness known as atherosclerosis. A picture of a typical artery's anatomy can be found in Foam cells, or subendothelial accumulations of cholesterol-engorged macrophages, are the earliest lesions of atherosclerosis.Nitric oxide and prostacyclin are two chemicals that are produced by your endothelium. These maintain the fluid in your blood and stop it from clotting when it shouldn't. These compounds' insufficient production is a symptom of various diseases, which raises your risk of clotting.To learn more about atherosclerosis.
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I can't really understand what the experiment would be, so I can't think of a hypothesis.
The experiment that is to be conducted is intended to verify and test the widely accepted hypothesis that maggots appear spontaneously in decaying meat. Additionally, you should record each and every step you take during this experiment.
The following is the theory or hypothesis : Fly larvae are referred to as maggots. They feed on meat because females place their eggs in materials that give food for the hatched maggots. Many fly species prefer meat as a source of maggot feeding. Modern meat processing and packaging follow strict health code guidelines. Until it is time to make it, it is stored frozen or chilled and is packaged in plastic. Meat exposed to the air at room temperature, however, might draw female flies looking for a spot to deposit their eggs which leads to maggots. Fly eggs can easily hatch on leftover meat scraps causing maggots that aren't wrapped in plastic or placed inside of a bag.
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Strong evidence for the common ancestry of all life comes from the fact that _________________.
Strong evidence for the common ancestry of all life comes from the fact that similar DNA sequences
What is DNA?
Humans and nearly all other species carry their genetic information in DNA, also known as deoxyribonucleic acid. The DNA of an individual can be found in almost all of their cells. The majority of DNA is found in the cell nucleus (where it is known as nuclear DNA), but there is also a tiny quantity of DNA in the mitochondria (where it is called mitochondrial DNA or mtDNA). Cellular organelles called mitochondria transform the energy from food into a form that can be utilized by cells.
Adenine (A), guanine (G), cytosine (C), and thymine (C) are the four chemical bases that make up the code that stores the information in DNA (T). More than 99 percent of the 3 billion bases that make up human DNA are the same in every person.
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The areas for speech are found in the _________ and __________ lobes. a. frontal . . . occipital b. temporal . . . frontal c. occipital . . . parietal d. frontal . . . parietal please select the best answer from the choices provided a b c d
The areas for speech are found in the frontal and temporal lobes.
The areas for speech are preferably found in the frontal and temporal lobes of our brain. Our brain is primarily responsible for all bodily functions. The brain has many parts like the medulla, cerebellum, and cerebrum. The cerebrum is the largest part of the brain and is the primary organ for speech. The cerebrum has two hemispheres which are divided into smaller regions called lobes. These include temporal, frontal, parietal, and occipital lobes.
The frontal lobe and the temporal lobes are primarily responsible for speech. They are located on the front and side of the brain above the ears. The frontal lobe is the largest of the four lobes and is responsible for many functions. Broca's area is a part of the frontal lobe which is responsible for turning your words and thoughts into verbal words. Another Wernicke's area is situated in the temporal lobes and is responsible for processing and understanding the languages and words of speech. Arcuate fasciculus is a band of nerves that connect the above two areas.
The areas of speech are Broca's area and Wernicke's area which are found in the frontal and temporal lobes respectively.
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Cognitive-behavioral and learning theories are based on the idea that sexual behaviors are influenced by:_______
Cognitive-behavioral and learning theories are based on the idea that sexual behaviors are influenced by: Positive and negative feedback that people receive when they express sexual behaviors.
What are the three primary theories of cognitive learning?There are three significant theories of cognition. Piaget's developmental theory, Lev Vygotsky's social-cultural cognitive theory, and the information process theory are the three cognitive theories. Piaget thought that for a kid to be able to comprehend the world, they must pass through four stages of cognitive development.What distinguishes behavioral and cognitive theories of learning in particular?The main distinction between behaviorist and cognitive learning approaches is that behaviorism places more emphasis on using one's own actions or other things that may be seen to explain things. The foundation of cognitivism is primarily on cognitive functions like memory and decision-making.To learn more about cognitive theories visit:
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2. During an activity, a teacher labeled the following scenario as hypertonic. Is she correct? Why or why no
%H₂0
15%
solute
80% H₂O
% solute
It is a hypotonic solution because the solute concentration is more than the soluion.
hypotonic solution is the solution that has a lower solute concentration than the cell so water moves into the cell causing plant cells to swell and animal cells to swell and burst whereas hypertonic solution is the solution that has a higher solute concentration than the cell so water moves out of the cell and into the solution causing the cell to plasmolyze.During hypotonic solution, the plant cell fills up and become more rigid causes (turgor pressure) on the other hand animal cell The cell would burst (hemolysis).To know more about hypotonic solution visit :
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