Answer:
science are still working on so many levels of institution like medical aspect
Explanation:
science are still working on so many levels of institution like cells and medicine
research has not been ended on finding cure to most in curable disease like;
1. cancer :oestosarcoma
2. virus
A seed is a fertilized and mature (A.ovary, B.fruit, C.ovule, D.egg), consisting of an embryo or two coytyledons.
Answer: D. Egg
Explanation:
A fertilized egg becomes a seed.
The fragile and tiny cell mass that is composed of cells from the duplicated, divided, and differentiated zygote is called?
The fragile and tiny cell mass that is composed of cells from the duplicated, divided, and differentiated zygote is called blastocyst.
Zygote is the first cell formed after the fertilization of the male and the female gamete. It is a diploid cell that has the potential to give rise to a complete organism. It is the first developmental stage of an organism's life.
Blastocyst is the stage of the embryo that occurs due to certain number of cell division. it emerges on the 5th or 6th day after fertilization. The blastocyst consists of the inner cell mass that develops into the embryo, a blastocoel cavity and an outer layer called trophectoderm.
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Groups of three or more monomers are called ____________ and include ____________ .
Groups of three or more monomers are called polysaccharides, starch and include short-term storage. Monomers are small molecules, mainly organic, that can combine together to produce larger molecules, or polymers. All monomers can form chemical connections with at least two other monomer molecules. Monomers are small molecules, mainly organic, that can combine together to produce larger molecules, or polymers.
All monomers can form chemical connections with at least two other monomer molecules. Sugars, amino acids, fatty acids, and nucleotides are the four main forms of monomers. Each of these monomer kinds is essential to the survival and evolution of life, and each can be generated abiotically.
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In order for induction to occur, what must happen to a neutral object?
It must be magnetized
It must come close to a charged object
It must be rubbed against a hard object
It must be charged by a rubber rod
Answer:
i think its B
Explanation:
The enzyme located in the inner mitochondrial membrane that synthesizes atp is known as ________.
Answer:
ATP Synthase
Explanation:
11. Name the tissue type.
12. What is its function?
The tissue is simple squamous epithelial cell. It helps in diffusion of gases and exchange of nutrients in the body.
What are squamous epithelial cells?Squamous epithelial cells are the type of simple epithelial cells, made up of single layer of cells. They are flat, thin and polygonal in shape. They are arranged in a single layer on a basal membrane. Squamous cells have nucleus in the centre.
These cells are present in the lining of the alveoli in lungs and in the glomerulus in nephrons. They facilitate gaseous exchange in alveoli. In glomerulus they help in exchange of nutrients and elimination of wastes from blood capillaries.
Thus, squamous cells have important function of transport and absorption in the body.
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A patient is being tested for a hematological neoplasm. which finding(s) would be present in the patient if he or she tests positive for the neoplasm? select all that apply.
A patient is being tested for a hematological neoplasm. If he/she tests positive for neoplasm, there would be:
Increased proliferation of abnormal lymphocytes.Increased clotting time.What is hematological neoplasm?Hematological neoplasm is a neoplasm arising from hematopoietic cells found in the bone marrow, peripheral blood, spleen (organs of the hematopoietic system) and lymph nodes. Hematologic neoplasms comprise of multiple malignant diseases derived from cells of myeloid or lymphocytic hematopoietic lineages. Hence, classification of these disorders is primarily based on the hematopoietic lineage into lymphoid and myeloid neoplasms.
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A homeostatic imbalance that activates these bone cells would lead to a loss of bone density.
Answer:???
Explanation:
He large protein complexes that are major protein-digesting organelles are _________
The large protein complexes that are major protein-digesting organelles are proteasomes.
What is proteasomes?Protein complexes called proteasomes use the chemical mechanism known as proteolysis to break down unwanted or damaged proteins. Proteases are an enzyme class that aids in these processes. A key method by which cells control the concentration of specific proteins and destroy improperly folded proteins includes proteasomes. All eukaryotic, archaea, and certain bacteria contain proteasomes. Proteasomes are found in the cytoplasm and nucleus of eukaryotes. Numerous physiological activities, such as the cell cycle, the control of gene expression, and reactions to oxidative stress, depend on the proteasomal degradation pathway.Learn more about the Proteasomes with the help of the given link:
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During the citric acid cycle, an acetyl coa molecule produced in the intermediate stage combines with a molecule of:_______
During the citric acid cycle, an acetyl co A molecule produced in the intermediate stage combines with a molecule of oxaloacetic acid.
The primary energy source for cells and an important part of aerobic respiration is the tricarboxylic acid (TCA) cycle, sometimes called the Krebs or citric acid cycle. This cycle converts the chemical energy of acetyl-coenzyme A (acetyl-CoA) into the reducing power of nicotinamide adenine dinucleotide (NADH), which is further oxidized and enters the TCA cycle as acetyl-CoA. The intermediate half of the cycle also serves as the starting point for pathways leading to important molecules such as fatty acids, amino acids, and porphyrins. If any of these intermediates are diverted in this way, the integrity of the cycle is compromised and the cycle ceases to function. Only when the diverted intermediate, or the subsequent intermediate leading to oxaloacetate, is replaced by a replenishment (replenishment) process can significant energy production resume.The correct answer is oxaloacetic acid.
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The bacteria in a petri dish increases according to continuous exponential growth model, with a growth rate of 1.2% per hour. How much bacteria will you have after 24 hours from an initial sample of 2000 bacteria?
The number of bacteria growth after 24 hours is determined as 2,663 bacteria.
Number of bacteria after 1 hourThe number of bacteria growth after 1 hour can be calculated using the rate equation.
N(t) = N₀(1 + r)^t
where;
r is the rate = 1.2% = 0.012t is time = 24 hoursN₀ is the initial numberN(24) = 2000(1 + 0.012)^24
N(24) = 2,663 bacteria
Thus, the number of bacteria growth after 24 hours is determined as 2,663 bacteria.
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Rather than attempting to classify humans into racial categories, biologists and anthropologists are:_________
Rather than attempting to classify humans into racial categories, biologists and anthropologists are: seeking to explain why specific biological variations occur
What are biological variations?
Biological variety is important to all our lives. Our world is home to a wide variety of life forms thanks to diversity. For each species to survive and find a niche in which to flourish, diversity is crucial. Without delving into the idea of evolution, diversity within our own species is evident in a number of observable traits, like height, and functional traits, such as the capacity for biotransformation. The pharmacogenomics discipline is emerging as a result of the latter source of variability. Unfortunately, biological diversity makes it difficult to examine the effects of treatments, even when the trial is planned and overseen beforehand. There is always a range of reactions shown in measurements conducted on study animals, regardless of how inbred they are.
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Temperate climates are not usually conducive to organic preservation at archaeological sites because of?
Temperate climates are not usually conducive to organic preservation at archaeological sites because of variable temperatures and fluctuating precipitation
What is Climate ?The long-term pattern of the weather in a place is called the climate. Hour by hour, day by day, month by month, or even year by year, the weather might change. A region's climate is determined by its weather patterns, which are typically monitored for at least 30 years.
The average of the weather is the climate. As an illustration, you can anticipate snow in the Northeast in January or hot and muggy weather in the Southeast in July. Climate is this. Extreme values, such as record-breaking high temperatures or heavy rainfall, are also part of the climatic record.Learn more about Climate here:
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Most cells are relatively small for reasons related to the of substances into and out of cells.
According to the research, the correct option is transport. Most cells are relatively small for reasons related to the transport of substances into and out of cells.
What is cellular transport?They are mechanisms that allow substances to cross membranes and move molecules between the inside and outside of cells are essential for life.
In this sense, given that the cell constitutes the smallest and simplest form of biological organization, these functions of the plasmatic membrane are of great importance for the cell, if the cells were incapable of carrying out said transport, the organism would not carry out its vital activities .
Therefore, we can conclude that according to the research, the correct option is transport. Most cells are relatively small for reasons related to the transport of substances into and out of cells.
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The discovery of ribozymes provide evidence that life on the early earth may have been based on:________
The discovery of ribozymes provide evidence that life on the early earth may have been based on RNA.
Ribozymes are the RNA molecules with the capability of performing catalysis. They are, therefore, also called catalytic RNA. Ribozymes are present in ribosomes where the catalyze the joining of amino acids to form polypeptides.
RNA is the transcript of DNA. These are usually single-stranded structures. There are majorly three types of RNA: m-RNA, t-RNA and r-RNA. The difference from DNA is that in RNA, ribose sugar is present instead of deoxyribose and it consists of uracil as the nucleotide. Translation of m-RMA forms the protein.
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The _____ is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
The plasma membrane is the bacterial structure that acts as a selective barrier, allowing nutrients to enter the cell and wastes to leave the cell.
The cell membrane or plasma membrane can be described as a selectively permeable membrane that allows the selective entry of materials into and out of a cell. All the organelles of a cell are enclosed in the plasma membrane and hence it separates the interior of a cell from the exterior.
For single-celled organisms, such as bacteria, nutrients are received by the cell through the plasma membrane and excretion of waste also occurs through the plasma membrane. The bacterial cell membrane is made up of phospholipids and usually, it encloses a food particle in it for absorption of food.
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The __________ of the sperm contains enzymes involved in the penetration of the egg.
The acrosome of the sperm contains enzymes involved in the penetration of the egg.
By utilizing this maternal investment, the sperm is enhanced to spread the paternal genes; typically, it is extremely motile and streamlined for speed and efficiency during the task of fertilization. Only a small percentage of the billions of sperm generated during a human male's reproductive life actually succeed in fertilizing an egg due to intense competition amongst them. The tail, which directs the sperm to the egg and aids in its penetration of the egg coat, and the head, which houses a condensed haploid nucleus, are the two morphologically and functionally separate sections that typically makeup sperm. Because of the highly close packing of the DNA in the nucleus, transcription is stopped and its volume is reduced for transport.
Many sperm lack the somatic cell histones and instead have simple, extremely positively charged proteins called protamines packed within their chromosomes.
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1 cm³ of water is equal to how many liters of water?
Answer:
0.001
Explanation:
a drug like nicotine that produces a biological response in the brain is called a(n) .
A drug like nicotine that produces a biological response in the brain is called an dopamine agonist. Nicotine enters the brain within seconds of taking a cigarette. Nicotine promotes the release of brain chemicals known as neurotransmitters, which help regulate mood and behavior. Nicotine is a hazardous and extremely addicting substance.
It can increase blood pressure, heart rate, blood flow to the heart, and promote brain artery constriction (vessels that carry blood). Nicotine may also contribute to artery wall hardening, which may lead to a heart attack. Nicotine is a stimulant substance that speeds up the transmission of messages between the brain and the body.
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The digestive system codes include sites from the mouth to the anus, as well as the?
The most important organs that make up the digestive system (so as in their function) are the mouth, esophagus, stomach, small intestine, big intestine, rectum and anus.
Helping them alongside the manner are the pancreas, gall bladder and liver. Here's how those organs paintings collectively on your digestive system.The GI tract is a sequence of hole organs joined in a long, twisting tube from the mouth to the anus.
The hole organs that make up the GI tract are the mouth, esophagus, stomach, small intestine,large intestine, and anus. The liver, pancreas, and gallbladder are the stable organs of the digestive system.
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Virtually all chemical changes that take place in cells require ________, molecules that greatly increase the rate at which a chemical reaction occurs.
Virtually all chemical changes that take place in cells require enzymes, molecules that greatly increase the rate at which a chemical reaction occurs.
Enzymes are the biological catalysts. these are actually proteinaceous in nature. They are known to increase the rate of a reaction. This is done by lowering the activation energy of that reaction. Almost all the reactions of the body require enzymes.
A chemical reaction is actually a chemical change in the structure of a molecule, called reactant to yield another molecule called the product. These reactions can occur spontaneously or with the help of enzymes.
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Muscular exercise presents a dramatic test of the body's homeostatic control systems because it results in large _____.
Muscular exercise presents a dramatic test of the body's homeostatic control systems because it results in large amounts of heat production.
Homeostatic control systems- A body's physiological ability to maintain a steady internal environment in response to changes in the external environment is known as homeostasis.
Heat Production- The term "thermogenesis" refers to the process through which energy is lost by producing heat with specialization.
Energy- In biology, cells frequently store energy in macromolecules, especially lipids and carbohydrates (sugars). When chemical bonds are formed, such as during the redox reactions of cellular aerobic respiration, energy is released.
Redox Reactions- A reaction that happens when an oxidizing material and a reducing substance come into contact.
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The structures in the epigastric region share a common nerve supply. can you name the specific cranial nerve that serves this region and the part of the nervous system to which it belongs?
The epigastric region is served by the vagus nerve and can be found in the parasympathetic division of the autonomic nervous system.
The vagus nerve connects the neck, chest, heart, lung, and belly. It is the longest cranial nerve and runs from the brain to the large intestine. It is also known as cranial nerve X. The cranial nerves are categorized using Roman numerals based on where they are located. It affects the autonomic nervous system, which controls processes like breathing and digestion that happen automatically. It can also act as a bridge between the gut and the brain, contributing to the gut-brain axis, as described by experts. Digestion, heart rate, respiration, heart rate, as well as reflex actions including coughing, sneezing, swallowing, and vomiting are some of the functions of the vagus nerve. The major nerve pertaining to the parasympathetic nerve system, often called the vagal nerve, controls all reflex activities.
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If one or more nucleotide pairs are deleted from a dna strand, this is known as a :________
a. frameshift mutation
b. point mutation
c. missense mutation
d. silent mutation
Answer:
If one or more nucleotide pairs are deleted from a DNA strand, this is known as a :frameshift mutation
Explanation:
Due to deletion changes occur in the sequence of DNA when at least one nucleotide is removed in a gene.
The point mutation is just a type of genetic modification in which only one nucleotide base from either the DNA or RNA code of an organism is modified, added, or removed.
A missense is just a type of point mutation in biology that causes a codon to encode for a various amino acid as a consequence of a single nucleotide modification. Sickle cell disease or anaemia is an good example of this kind of mutation.
Silent mutations are the kind of mutations in which DNA can not affect the phenotype of an organism. They represent a particular kind of neutral mutation.
So, the correct option is frameshift mutation (A).
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How does the change in free energy differ between exergonic and endergonic reactions?
he change in free energy difference between exergonic and endergonic reactions are: Exergonic reactions release energy which leads to a loss of free energy and Endergonic reactions consume energy which leads to a gain of free energy.
Differentiate between Exergonic and Endergonic reaction?The exergonic reactions are spontaneous reaction, whereas endergonic reactions are usually non-spontaneous reaction. During exergonic reactions, the energy is formed or released whereas, during the endergonic reactions energy is absorbed. During exergonic reactions, the value of energy is less than zero whereas, in endergonic reactions, the value of Gibb's free energy is greater than zero. The sign for exergonic reactions is usually negative, whereas the sign for endergonic reactions is positive. The exergonic reactions are generally favorable, whereas unfavorable reactions take place in endergonic reactions. During endergonic reactions, the entropy decreases, whereas the entropy increases during exergonic reactions.
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Patient r.m., who had suffered lesions of both the left and right parietal lobes, was able to?
Two functional zones can be distinguished in the parietal lobes. One deals with feeling and perception, and the other, mostly with the visual system, is about integrating sensory input.
Describe Parietal lobes.The first process combines sensory data to create a single perception (cognition). The second function creates a spatial coordinate system to symbolize the environment we live in. People who suffer from parietal lobe loss frequently display startling deficiencies, including as anomalies in body image and spatial interactions. Patient who had suffered lesions of both the left and right parietal lobes, was able to Enhance conjunction targets detection but not feature targets, Illusory conjunctions despite having ample time to observe the stimuli and Despite being able to read single words, he had difficulty localizing them.Learn more about the Parietal lobe with the help of the given link:
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Please give a short explanation about suspension, colloids, and, solutions.
Answer:
A suspension is a mixture containing small insoluble particles evenly distributed in a fluid but a colloid is a non uniform mixture of a solute and a solvent in which the particles are permanently suspended also a solution is a uniform mixture of a solute and a solvent
Prompt
Use the model here to describe the transfer of matter and flow of energy from one trophic level to another within an ecosystem. All of
the following must be addressed in your response to receive full credit:
a
Discuss the transfer of biomass when one organism eats another. Use your knowledge of digestion to discuss how food is broken
down and used by the consumer.
b. Explain what happens to the energy that is not transferred from one organism to another.
c. Explain why there are typically fewer organisms at of the top of an energy pyramid.
d. Use specific numbers and calculations to support your explanation.
<< Read Less
The energy contained within the trophic levels of an environment is represented graphically by an energy pyramid, sometimes referred to as a trophic or biological pyramid.
The producers are located at the base of the pyramid, which is also its largest level. This level also contains the most energy. An ecological pyramid, a food web, or a level in a food chain are all examples of trophic levels. It is inhabited by a collection of creatures with comparable eating strategies. Energies are lost as metabolic heat when an organism from one trophic level is consumed by an organism from the next level, which causes energy to diminish as it goes up the trophic levels. The efficiency of energy transfer between trophic levels is measured by a term called trophic level transfer efficiency (TLTE).
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1 Identify the tonicity of each cell.
2 Identify where the concentration is highest in each cell
3 Tell the rate of movement in each cell
4 Explain the factors that could be causing the changes in tonicity.
Please Help ASAP,
1) The first cell is in a hypertonic solution, the second cell is in isotonic solution while the third cell is in hypertonic solution.
2) The concentration is highest in the first cell.
3) There is movement of water out from the first cell, there is no net movement of water in the second cell and there is movement of water into the third cell.
4) Increase in solute concentration.
What is cell tonicity?Cell tonicity is defined as the effects of extracellular solution on the osmotic gradients that us formed against cells that are associated with them.
There are different types of cell tonicity which include the following:
Hypertonic solution: This is the solution that contains more solutes than the solvent of the solution leading to the movement of water from the cell to the outside extracellular solution. It causes shrinking of the cell.Isotonic solution: The net solute concentration of the extracellular solution is the same with the cells.Hypotonic solution: This is the solution that contains less solutes than the solvent of the solution leading to the movement of water from the extracellular solution into the cell. It causes swelling the cell.Learn more about cell here:
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Ollowing a disturbance, the climate of an area will always lead to repopulation by the same animal, plant, fungus, and bacterial species, a group collectively referred to as a(n) __________ community.
The climate of an area will always lead to repopulation by the same animal, plant, fungus, and bacterial species, a group collectively referred as Climax Community.
What is climax community?
A community of plants, animals, and fungi that have attained steady state through the process of ecological succession in the growth of the vegetation in an area over time is referred to in scientific ecology as a climax community or climatic climax community.
Because the climax community is made up of species that are best adapted to the region's typical conditions, it was believed that this equilibrium would emerge.
The climax community's species composition doesn't change since all of the existing species are able to reproduce, whereas invasive species are unable to establish a presence. The climax stage is not entirely permanent since ecological processes, evolutionary processes, and climate changes all alter the environment over extremely long stretches of time.
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