This would be due to genetic drift.
Hope this helps!
Correct answer: Genetic drift
Genetic drift is defined as the process in which the allele frequency of a population is changed by chance or due to random changes in the environment. It is a random process that can lead to large changes in the overall population in a short period of time. It is a mechanism of evolution and it does produce the adaptation.
A) what are telomeres?
b.are telomeres present in both prokaryotes and eukaryotes?
c.explain why some cells have telomeres and others don't (base your explanation on the structure of the dna molecule and the directionality of polymerases).
A) Telomeres are the caps at the end aspect of DNA that defend our chromosomes, which guards the end of a chromosome from corrosion.
B) Telomeres only exist in eukaryotes, because it possesses the chromosomes from being tarnished by specific molecules in the cell.
C) The Telomeres are known as to hold a capping function. Its principal mission in the eukaryotes is to defend the end of the chromosome from the DNA deprivation, its repair contrivance and the fusion with other ends. It is also inattentive in the prokaryotic cells because it has a circular chromosomes, therefore Telomeres are needed in their state.
The membrane potential exists mainly due to ________ channels.
A nurse is evaluating the client's understanding of post cataract surgery instructions. the client needs further education when they state."i will report any yellow drainage to my provider"."i can return to my normal activities like cleaning my house and vacuuming.""i will report any nausea or vomiting"."my vision will improve over the next 4 to 6 weeks".
A nurse is evaluating the client's understanding of post cataract surgery instructions. The client needs further education when they state: I can return to my normal activities like cleaning my house and vacuuming.
Further Explanation:
The lens is that part of the eye which allows it to focus light or an image on the retina which is present at the back of the eye and is involved in converting light signal into nerve signal. Lens mainly consist of water and protein.
The cataract is the condition when there occurs clouding of the lens in the eyes which eventually affects the vision. This can affect either or both the eyes but cannot build out from one eye to another.
In normal vision, the proteins in the lens are present in a precise way which maintains the lens clear and allows the passage of light but with ageing, the protein may assemble together and start gathering to a small part of the lens which results in cataract.
Cataract surgery may increase the risk of retinal detachment.
There can be post-surgery effect of cataract treatment which may include itching, some fluid discharge, infection and mild discomfort.
Doctors may suggest the patients undergone cataract surgery to use some eye drops, wear an eye shield or eyeglasses and avoid bending from the waist and do the heavy household chores
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Answer Details:
Grade: College Biology
Subject: Biology
Chapter: The sensory organs.
Keywords:
Eye, lens, light, retina, cataract, nerve signal, proteins, itching, retinal detachment, fluid discharge, surgery, eye drops, eye glasses.
a star turns matter into energy in the process of ?
nuclear fusion
The creation of offspring carrying genetic information from a single parent is called
Why does a lack of movement create swelling in barbara's legs?
The activity of which enzyme decreases in both acidic and basic environments?
(1) chymotrypsin (3) cholinesterase
(2) pepsin (4) papain
What changes would you recommend to permit expression of this eukaryotic gene in a bacterial cell?
Gene Expression is the progression wherein the information from a gene is used in the combination of a functional gene product. In eukaryotic cells, genes are delimited by repressors as well as by transcriptional activators. The repressors will muddle to the specific DNA sequences and will constrain transcription.
You sell sunglasses that come in small and large boxes. the small box has one layer of sunglasses. the large box has five layers, each of which has two fewer pairs of sunglasses than a layer in the small box.
Which property below is shared by both carbohydrates and lipids
A. Both have the same number of oxygen atoms.
B. Both are sources of cellular energy.
C. Both are dissolvable in water.
D. Both have the same proportion of carbon-hydrogen bonds.
Answer: B. Both are sources of cellular energy.
Explanation:
Carbohydrates and lipids both are the biomolecules which are composed of carbon, hydrogen and oxygen in different proportions. The lipids have greater ratio of hydrogen to oxygen than that of carbohydrates. The lipid molecules contain more energy per gram of the carbohydrates. These are sources of energy in the body and provides energy for functioning of the cellular metabolism.
How does the structure of a phospholipid differ from the structure of a fat?
A phospholipid has two fatty acid chains and a phosphate group, making it amphipathic with hydrophobic tails and a hydrophilic head, whereas a fat has three fatty acid chains attached to glycerol without the amphipathic properties.
The structure of a phospholipid differs from that of a fat (also known as a triglyceride) in its components and properties. A triglyceride consists of three fatty acid chains attached to a glycerol molecule, whereas a phospholipid hastwo fatty acid chainsand one phosphate group connected to the glycerol. This small but critical structural difference results in distinct properties for each. Phospholipids have a unique amphipathic nature, meaning they have both hydrophobic (water-repelling) and hydrophilic (water-attracting) regions. The fatty acid tails of phospholipids are hydrophobic and tend to exclude themselves from water, whereas the phosphate head is hydrophilic and seeks interaction with water. This structure is crucial in the formation of cellular membranes, where the hydrophobic tails face inward, shielded from water, and the hydrophilic phosphate heads face the outward, aqueous environment.
Why are reduction division and haploid gametes important?
Answer:
This is in order to maintain the species number of chromosomes.
Explanation:
Reduction division occurs by meiosis and it is very necessary in organisms that reproduce sexually.
Meiosis will take place in the ovary and testis to produce haploid gametes that have half the number of chromosomes compared to the parent cell .
During fertilization the two gametes will fuse to form the offspring an offspring with the same number of chromosomes as the parent. The species number of chromosome has been maintained.
Without meiosis or reduction division the off-springs would have double the chromosomes as the previous generation did.
What does l.h. snyder mean by the term "mendelian marker"?
Which of the following is most dense? asthenosphere, continental, crust , core , mantle, or oceanic crust
The core is the most dense layer of the Earth, with a density between about 9.9 to 12.2 g/cm3, which is higher than the mantle, asthenosphere, and both the oceanic and continental crusts. Hence, option 4 is correct.
Among the options listed — asthenosphere, continental crust, core, mantle, and oceanic crust — the core of the Earth is the most dense. Specifically, the Earth's core is divided into the solid inner core and the liquid outer core with densities ranging from about 9.9 to 12.2 g/cm3 for the inner core and 9.9 to 12.2 g/cm3 for the outer core. In comparison, the mantle has a density of approximately 4.5 g/cm3, and even though the oceanic crust is denser than the continental crust, with a density of about 3.0-3.1 g/cm3 versus 2.7-2.8 g/cm3 for the continental crust, it is still less dense than the core. The asthenosphere, which is a part of the upper mantle, has a lower density than the mantle as a whole due to its semi-fluid nature and thus is also less dense than the core.
How can surveying reading material improve your comprehension?
The power was off last night, and the yeast cultures in your incubator cooled down from 25 degrees to 20 degrees centigrade in temperature. to your great relief, you find that the yeast cells did not die. however, when you analyze the composition of the lipids in the plasma membrane of your yeast cells, you discover
How are spores produced sexually differ from spores produced asexually?
Sexually produced spores in fungi are the result of genetic recombination between two different mating types, resulting in ascospores with diverse genetic material. Asexually produced spores, such as conidiospores, are genetically identical to the parent and form without the fusion of gametes.
Spores produced sexually and asexually in fungi have different origins and genetic compositions. Asexual reproduction frequently involves the production of conidiophores that release haploid conidiospores. These spores are genetically identical to the parent and are produced without the fusion of gametes.
In contrast, sexual reproduction involves the union of specialized hyphae from two mating types. The "male" strain produces an antheridium while the "female" strain develops an ascogonium. Fertilization occurs through plasmogamy, followed by karyogamy within the ascus, leading to the formation of ascospores. These spores contain genetic material from both parent strains and are produced following meiosis, which means they have a recombined genetic makeup. This difference in genetic composition between asexual and sexual spores can result in a greater genetic diversity in the latter, which can be beneficial for survival through unfavorable conditions.
If the dorsal lip of the blastopore of an amphibian is grafted onto another complete blastopore, this will result
Trace the flow of energy by numbering the following events from start to finish. 1. Step 1 The Sun emits energy. 2. Step 2 A rabbit eats the plants and uses the energy for growth and respiration. 3. Step 3 Plants absorb energy from the Sun and use it for photosynthesis. 4. Step 4 A fox eats the rabbit and uses the energy for growth and respiration. 5. Step 5 The fox dies and is decomposed.
In an ecosystem, the energy flows from the producer to consumer levels. The plants utilise the energy from the sun and convert it into chemical energy. The chemical energy is stored as a form of energy molecules in the plants. The primary consumers eat the plants and get the chemical energy. The tertiary consumers eat the primary consumers and obtain energy from them. The dead organism is decomposed and the organic nutrients are restored in the soil.
Hence, the correct sequence would be:
1. The Sun emits energy.
2. Plants absorb energy from the Sun and use it for photosynthesis.
3. A rabbit eats the plants and uses the energy for growth and respiration.
4. A fox eats the rabbit and uses the energy for growth and respiration.
5. The fox dies and is decomposed.
The brain region that identifies where the pain is occurring is the:
The creature in the photograph is a protist, which is composed of only one cell. This means that a protist A) cannot reproduce. B) is a living organism. Eliminate C) cannot survive in water. D) gets energy directly from sunlight.
Answer:
B) is a living organism.
Explanation:
All living organisms must have 8 treats or characteristics to be called living things:
cellular organizationreproductionmetabolismhomeostasisheredityresponse to stimuligrowth and developmentadaptation through evolutionThese eight characteristics are what make something a living thing, since the protist is made out of a cell, which has all of this characteristics, we can assume is a living organism, the other options could be truth, but we do not have enough information to say if they are or they aren´t true.
A student used a microscope to observe a single-celled organism. As he watched ,it looked as if the organism split into two cells. He made drawings, shown below, of the organism over a short period of time.
A. genetic engineering B.asexual reproduction C. selective breeding D. gamete formation.
https://lh5.googleusercontent.com/jvlVdGTiF3QDMXAl3k-ubO_CIE5osPHW9lXFEV3Y3l9SCFrbbYYi_n3qaItvFxylbQ53bOQa3Q=w220
Food labels list the amounts of (and calories from) carbohydrates, fats, and proteins, but not nucleic acids. why not?
Answer:
Nucleic acids are not on food labels because they do not serve as a nutrient.
Explanation:
Nucleic acids are one of the most important macromolecules and are involved in making up of the DNA and RNA of organisms. The nucleic acids will be present in every living thing, whether alive or dead. Hence, nucleic acids will be present in all the food that we consume but they do not serve as a nutrient.
Hence, food labels and nutritional values on the packs do not contain the number of nucleic acids in a product.
Answer:
Because food labels are required to show nutritional information and food composition. Nucleic acids are not a nutritional component of our diet, nor are they an ingredient in products.
Explanation:
List of ingredients, shelf life and nutritional information are among the mandatory items on labels, as is the home measure, which is how the consumer measures the food (slices, cups, spoons, etc.). In other words, we can say that food labels should present information relevant to people's nutrition. Nucleic acids are not a nutritional element, so they are not listed on labels.
compare the productivity of terrestrial and aquatic ecosystems against the percent of Earth’s surface area they occupy.
What are some disadvantages of sensory adaption? (opinion)
Sensory adaptation can lead to overlooking important changes, desensitization to crucial signals, decreased enjoyment of experiences, and potential safety risks.
Sensory adaptation is the process by which our sensitivity to a constant stimulus decreases over time. While this allows us to focus on new and changing stimuli, there are several potential disadvantages:
Overlooking Important Changes: Sensory adaptation can cause us to miss critical changes in our environment. For instance, we might fail to notice a gas leak in our home because we have become accustomed to the background smell.Desensitization to Important Signals: We may become less responsive to essential signals, such as alarms or warning sounds, if they remain constant over time.Decreased Enjoyment of Experiences: Experiences such as eating or listening to music can become less pleasurable as our sensory response diminishes with constant exposure. For example, the joy of eating your favorite cookie decreases with each bite due to sensory adaptation.Potential Safety Risks: Constant exposure to certain sensory stimuli, like the hum of a machine, can cause us to ignore them even when they indicate a malfunction or hazard.How does the structure and conformation of proteins influence their behavior in foods?
Use this new information to determine the parents' genotypes (indicated by red arrows). then calculate the probabilities that the second male offspring will have each condition.
how do soils form? please answer this fast.
In an aquatic ecosystem, the fishing of a particular fish species increased. This fish species is a secondary consumer in an energy pyramid. The fishing of the species led to a decrease in its population. In which two ways will this affect the food web?
The higher levels in the pyramid will receive more energy.
The higher levels in the pyramid will receive less energy.
The lower levels in the pyramid will have less predation.
The higher levels in the pyramid will receive no energy at all.
The lower levels in the pyramid will receive less energy.
Answer:
The higher levels in the pyramid will receive less energy.
As, it is stated that the fish species is secondary consumer in an energy pyramid. Secondary consumers are those organisms which depends upon primary consumers and primary producers for their food requirements, these can be Carnivores (meat eaters) or Omnivores (plant and meat eaters). Energy in a energy pyramid moves according to 10% law which says that energy at each subsequent higher level decreases by 10%, so the highest level in energy pyramid receives least energy. Fishing will led to decrease in population of fish species which is a secondary consumer, therefore energy received by higher level will be less.
The lower levels in the pyramid will have less predation.
The fish species being secondary consumer can be dependent upon primary producers like plants, phytoplanktons or other fish species for food requirements. As, this fish species depends upon other species for obtaining energy in the form of food, it's role is of predator in food web therefore, when this species decrease in population lower level species will get better chances of survival in absence of predation.
The higher levels in the pyramid will receive less energy while the lower levels will experience less predation.
Pyramid of EnergySince the fish species is a secondary consumer, it means that the species feeds or predates on the primary consumer in the ecosystem. They also act as prey for the tertiary consumers in the ecosystem.
With a reduction in their population, there would be less predation on the primary consumers and less preys for the tertiary consumers.
Thus, the lower level organism (the primary consumers) would experience lesser predation while the higher level (the tertiary consumers) organisms would receive lesser energy.
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Which is the best example of a pioneer species that would be found where a glacier has retreated?
Answer:
Which is the best example of a pioneer species that would be found where a glacier has retreated?
Algae
Barnacles
Crabs
Grass
Explanation:
FLVS?