Answer:
The options are missing, they are:
a.The daughter cells of meiosis I would be diploid, but the daughter cells of meiosis II would be haploid.
b.The two sister chromatids of each replicated chromosome would no longer be identical.
c.The four daughter cells produced in meiosis II would all be different.
d.The two daughter cells produced in meiosis I would be identical.
e.There would be less genetic variation among gametes.
f.Independent assortment of chromosomes would not occur.
The correct answer is E, there would be less genetic variation among gametes.
Explanation:
Crossing-over or also called recombination is a phenomenon peculiar to meiosis alone. Meiosis is that kind of division that is employed by sexual-reproducing organisms to produce gamete/sex cells. Crossing-over is a process that may or may not occur, if it does, it occurs in prophase of meiosis I, and it involves exchanging equal chromosomal segments between two non-sister chromatids or homologous chromosomes. Crossing-over is the means by which sexually reproducing organisms use to bring about genetic variation among their species.
It is worthy to note that the non-occurrence of crossing-over does not affect the number of chromosomes as a normal meiotic division will always yield haploid gametes right from meiosis I.
Since crossing-over did not occur, the homologous chromosomes (similar but non-identical chromosomes) will separate into each cell during meiosis I, meaning that each cell will have chromosomes that are either maternal or paternal. This will reduce the chance of genetic variation occuring among species.
Sharks
Select one:
a. have bone skeletons.
b. lack jaws.
c. have a keen sense of smell.
d. lack the lateral line system of bony fishes.
e. do not have paired fins.
Answer: (C.) Have a keen sense of smell
Explanation:
There are seven anatomic characteristics of sharks:
1. Cartilage Skeleton.
2. Skin covered with dermal denticles.
3. Powerful Jaws.
4. Efficient Liver.
5. Anatomic Tail.
6. Dynamic Fins.
7. Highly Developed Senses.
Their highly developed senses are the most important anatomic structures of sharks.
SHARK SENSES
1. Lateral Line.
2. Ampullae of Lorenzini.
3. A POWERFUL SENSE OF SMELL.
4. Good Eyesight.
5. Great Hearing
Translocation is a term used to describe the general movement of fluid and chemicals within body fluids. In every client's body, fluid and electrolyte balance is maintained through the process of translocation. What specific process allows water to pass through a membrane from a dilute to a more concentrated area?
Answer:
Osmosis
Explanation:
Cells of our body contains surface cell membranes i.e. plasma membrane, that regulates the entry and exit of substances in the cell. The movement of substances in the cell is carried out by a specific passive process where water and dissolved substances move from a place where there is a lower concentration of solute or high water concentration to a place where there is a higher concentration of solute or lower water concentration through the cell membrane which acts as a selective-permeable membrane. Tbis process is called OSMOSIS, and it regulates the movement of water in our body.
Osmosis is described as a passive process because it does not require energy input since the direction of movement is down the concentration gradient. The basis of movement is the difference in concentration between the exterior and interior part of the cell, also called concentration gradient.
Employers can protect their employees against asbestos exposure by providing either air-supplying or atmosphere-supplying _____.
Answer;
Employers can protect their employees that are against asbestos exposure by providing air supply.
Explanation:
Asbestos are very harmful that causes lung cancer, Shortage of breathing,Dry cough,chest pain and tightness, asbestosis disease by inhaling asbestos fibers.The dust that is emitted is not safe for the affected person so proper air supply should be provided along with special safety measures. Also reduce exposure to asbestos is one of the best prevention measure. Doctors also suggests the patient to use supplemental oxygen to recover his breathing issues.
Answer:
Respirators
Explanation:
The best way to avoid inhaling asbestos is to wear a respirator when people work in a place where they are exposed to it. The respirators can be air-supplying respirators that provide clean air or atmosphere-supplying respirators that provide air from an independent source. According to this, the answer is that employers can protect their employees against asbestos exposure by providing either air-supplying or atmosphere-supplying respirators.
Mendel's law of independent assortment states that which allele is passed down to the next generation at one locus is dependent on which allele is passed down to the next generation at another locus.
Answer:
False
Explanation:
Mendel's law of independent assortment is about the random distribution of alleles of one gene during anaphase-I. It states that alleles of two or more genes segregate randomly to the poles of the cell. For example, the segregation of R and r alleles to the two poles of the cell would not affect the segregation of the T and t alleles. This random and independent segregation of alleles of different genes during anaphase-I produces new gene combinations in the progeny.
As algae photosynthesize, they deplete the surrounding water of _____ and the carbonate rock that precipitates from this water is enriched in ____.
Answer:
First blank: 12CO2 (12 mole of Carbon dioxide)
Second blank: 13C (13 mole of Carbon)
Explanation: Algae requires carbon dioxide and water for synthesizing organic molecules in the presence of sunlight trapped by a pigment called chlorophyll A.
Algae makes use of CO2 from the extrinsic environment (water) to incorporate its biochemical activities, like energy production.
In the process of conversation, carbon molecules are lost to the external environment which in turn enriches surrounding rocks with Carbon.
Pasteur demonstrated that yeasts and bacteria each produce specific metabolic products such as alcohols and organic acids using the metabolic pathway known as ________
Answer:
fermentation.
Explanation:
Alcohol, C02 and lactic acids are the end products of fermentation. This reaction pathway occur in the cytoplasm of cells in absence of oxygen.
In yeast cells it involved the removal of hydrogen atom from NADH to form NAD, for Glycolysis to continue, so that the 2 ATPs spent for glucose production in glycolysis, could be replaced.
The pyruvate from glycolysis is decarboxylated (removal of CO2 )to Ethanal. The C02 is liberated.The ethanal is reduced to Ethanol by the hydrogen removed from NAD. This is alcoholic fermentation.
Other organisms including man, undergo Latic acid fermentation,where the pyruvate from glycolysis is reduced to lactic acid from the hydrogen removed from NAD.
Louis Pasteur showed that yeasts and bacteria could produce specific metabolic products such as alcohols and organic acids via a metabolic pathway known as fermentation.
Explanation:Scientist Louis Pasteur demonstrated that yeasts and bacteria, two types of microbes, produced specific metabolic products like alcohols and organic acids. They achieved this through a metabolic pathway known as fermentation. For instance, yeasts convert sugar into alcohol and carbon dioxide, a process extensively used in winemaking and beer brewing. Similarly, certain bacteria under anaerobic conditions can create organic acids such as lactic acid.
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The fungus Coccidioides immitis is found in the soil. Humans contract coccidioidomycosis by inhaling fungal spores. Which of these descriptions applies to the role of soil in transmission of coccidioidomycosis?
Answer:
fungus
Explanation:
A recent study compared the Homo sapiens genome with that of Neanderthals. The results of the study indicated that there was a mixing of the two genomes at some period in evolutionary history. What data were discovered that suggested this conclusion?
Answer:
The genome sequencing showed a similar sequence.
Explanation:
The Neanderthals lived with modern humans until they got killed or disappeared by modern humans as a result of the competition around 10,000-12,000 years ago.
The studies on the sexual life of these two groups show that they used to exchanges their genetic material through sexual reproduction and the gene flow occurred between these two species.
Recent studies have provided the evidence that the 99.7 per cent DNA of the Neanderthal is similar to the modern Human beings and they also showed some homology in the DNA sequences like the language Gene is found on the same chromosome in both the species.
Thus, the genome sequencing showed a similar sequence is a correct answer.
A recent study comparing the Homo sapiens genome with that of Neanderthals found evidence of mixing between the two genomes. DNA analysis revealed similarities between Neanderthal DNA and modern European-derived populations, while modern European and Middle Eastern populations have been found to have Neanderthal DNA.
Explanation:A recent study comparing the Homo sapiens genome with that of Neanderthals found evidence that suggests mixing of the two genomes at some point in evolutionary history. DNA analysis revealed similarities between Neanderthal DNA and the DNA of modern European-derived peoples. In addition, modern European and Middle Eastern populations have been found to have between 1 and 4 percent Neanderthal DNA. These findings indicate that mating between Homo sapiens and Neanderthals was relatively common.
Mrs. Higgins needs to have major surgery. Two weeks before the surgery, her doctor prescribes EPO. Which of the following statements best explains his reason for doing this?
a) By prescribing EPO, the doctor will be able to increase oxygen levels because EPO causes hemoglobin to bind oxygen more efficiently.
b) By prescribing EPO, the doctor will decrease her hematocrit so that her blood is less likely to clot during surgery.
c) After she takes EPO, Mrs. Higgins's risk of infection will go down because of increased production of WBCs.
d) By prescribing EPO, the doctor can stimulate Mrs. Higgins's body to produce an overabundance of RBCs, which can be harvested and saved for her surgery.
Answer: NONE OF THE ABOVE OPTIONS ARE CORRECT.
Explanation:
EPO(Erythropoietin) can be used in patients who are going to have a major surgery in which significant blood loss is expected.
By administering EPO in the month before the surgery the patient often has a 1-2 gram rise in hemoglobin (increased hematocrit level) and this decreases the chance that a blood transfusion will be needed during the surgery.
Check all statements that are true about nuclear radiation.
Group of answer choices
Alpha radiation is a helium nucleus.
Gamma radiation is an electron.
Beta radiation can be stopped by thick wood or a sheet of aluminum.
Gamma radiation can be stopped by clothing,
The order of radioactive particles from most to least penetrating ability is gamma, beta, alpha.
electrons are beta radiation
Alpha radiation is easily stopped by paper or clothing.
Alpha radiation is a high energy electromagnetic wave.
Stable and non-stable nuclei can give off radiation.
Answer:
All these are true statements.
Alpha radiation is a helium nucleus.
Beta radiation can be stopped by thick wood or a sheet of aluminum.
electrons are beta radiation.
Alpha radiation is easily stopped by paper or clothing.
Explanation:
Alpha beta and gamma radiations are the examples of ionizing radiations. When an atom is an excited state and having high energy, the atom is in unstable state. The excess of energy is released by the atom to get the stability. The released energy is in the form of radiations which may include alpha, beta, gamma, X-ray etc.
Beta radiations:
Beta radiations are result from the beta decay in which electron is ejected. The neutron inside of the nucleus converted into the proton an thus emit the electron which is called β particle.
The mass of beta particle is smaller than the alpha particles.
They can travel in air in few meter distance.
These radiations can penetrate into the human skin.
The sheet of aluminium is used to block the beta radiation
⁴₆C → ¹⁴₇N + ⁰₋₁e
The beta radiations are emitted in this reaction. The one electron is ejected and neutron is converted into proton.
Properties of alpha radiation:
Alpha radiations are emitted as a result of radioactive decay. The atom emit the alpha particles consist of two proton and two neutrons. Which is also called helium nuclei. When atom undergoes the alpha emission the original atom convert into the atom having mass number less than 4 and atomic number less than 2 as compared to parent atom the starting atom.
Alpha radiations can travel in a short distance.
These radiations can not penetrate into the skin or clothes.
These radiations can be harmful for the human if these are inhaled.
These radiations can be stopped by a piece of paper.
₉₂U²³⁸ → ₉₀Th²³⁴ + ₂He⁴ + energy
Gamma radiations:
Gamma radiations are high energy radiations having no mass.
These radiations are travel at the speed of light.
Gamma radiations can penetrate into the many materials.
These radiations are also used to treat the cancer.
Lead is used for the protection against gamma radiations because of its high molecular density.
The lead apron are used by the person when treated with gamma radiations.
Lead shields are also used in the wall, windows and doors of the room where gamma radiations are treated, in-order to protect the surroundings.
False statements:
Gamma radiation is an electron (false)
Gamma radiation can be stopped by clothing, (False)
Alpha radiation is a high energy electromagnetic wave (False)
Stable and non-stable nuclei can give off radiation. (false)
only unstable nuclei give off radiations to get stability.
During a study session about evolution, one of your fellow students remarks, "The giraffe stretched its neck while reaching for higher leaves; its offspring inherited longer necks as a result." Which statement is most likely to be helpful in correcting this student's misconception?
Characteristics acquired during an organism's life are generally not passed on through genes. (T/F)
Answer:
For part 1
The statement to correcting the student's misconception is that 'ACQUIRED TRAITS CANNOT BE INHERITED'
For part 2
The statement is True - Traits acquired during lifetime ARE NOT passed on through genes.
Explanation:
For part 1 and 2
The appearance of an organism depends on TWO FACTORS:
- inherited traits contained in genes, and
- environment
Therefore, the stretched neck on the giraffe is due to its adapting to the environment so is an ACQUIRED TRAIT, and would NOT alter the gene for "normal neck" present in its chromosome.
So, no matter what evolution recognizes that, 'ACQUIRED TRAITS CANNOT BE INHERITED' in the giraffe offsprings but traits contained only in the genes.
The student's statement appears to follow Lamarck's theory of acquired characteristics, which is outdated. Modern biology prefers the concept of natural selection, where advantageous traits are more likely to be passed down.
Explanation:The statement made by your classmate isn't accurately representing the concept of evolution. It closely resembles Lamarck's theory of acquired characteristics, which has been largely discredited in modern biology. In fact, the long necks of giraffes are likely an example of natural selection, where individuals with slightly longer necks had a survival advantage and passed on their genes to future generations. Over many generations, this led to the evolution of increasingly longer necks.
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According to the theory of organic evolution, all living organisms are related, and they descended with some modifications from organisms that lived in the past.A) TrueB) False
Answer:
True
Explanation:
According to the theory of organic evolution, all organisms are related to each other and they all are descendants with some modification from the organism that lived in the past. The evidence of this theory can be seen in existence in homologous organs in different species for example wings of bird and hand or humans.
This homology proves that they shared the common ancestor in the past and they are descendants with some variation and modification which make them appear different from each other. Therefore the statement is true.
A researcher discovers a new microfossil. At first, he is uncertain whether this organism was a bacterium , Archaeon, or protist. After careful study, he determines that this organism was a protist. What features were present in this microfossil that lead the researcher to this conclusion?
Answer:
Exclusive features from Protozoa
Explanation:
Protozoa are unique and complex single-celled eucaryot. So, if the discovered microfossil still has some clues of a presence of a nucleus it might be a feature that can be related with only with a protist organism. Also, some protozoa has special anatomy structures like sensory bristles, photoreceptors, cilia, sting darts, etc. In conclusion there might be some features that could lead researchers to find a new extinct protist organism.
Complete oxidation of glucose to CO2 involves two different mechanisms for synthesizing ATP, oxidative phosphorylation and substrate-level phosphorylation. Which is true of substrate-level phosphorylation?
a. ATP is generated indirectly through the transfer of high-energy electrons from electron carriers to an electron transport chain.
b. Most of the ATP generated in cellular respiration is generated by substrate-level phosphorylation.
c. An enzyme catalyzes the transfer of a phosphate group to ADP from an organic molecule to form ATP.
d. ATP is generated by release of energy from the electron carriers NADH and FADH2.
Answer: C
Explanation:
In substrate level phosphorylation energy is trapped directly from the substrate, without the help of the complicated electron transport chain reactions.
Substrate-level phosphorylation refers to the formation of ATP from ADP by directly phosphorylating ADP from a high energy substrate catalyze by an enzyme.
But when energy is trapped by oxidation of reducing equivalents such as NADH, it is called oxidative phosphorylation.
Examples of substrate level phosphorylation in glycolysis include conversion of 1, 3-Bisphospho glycerate to 3-Bisphospho glycerate and conversion of phospho enol pyruvate to pyruvate
. In a laboratory population of Drosophila, all the males are XsY. Among the females, 15% are XiXi, 50% are XiXs and 35% are XsXs. Assuming random mating, what proportion of the male flies in the next generation will be XiY?
A. 12% B. 30% C. 40% D. 65%
2. A virgin female Drosophila mates and produces 34 daugthers and 38 sons. 18 of these sons sire only daughters, while the remainder sire approximately equal numbers of daughters and sons. What the gynotypes of the original female and the male with whom she mated
A. XiXs and XsY B. XiXs and XiY C. XiXi and XsY D. XsXs and XiY
3. If the e and f are expressed, the Xi chromosome will be prevented from reaching 100% frequency if selection pressure cause which of the following to be true?
A. XsXs flies have the lowest fitness of any genotype B. XsXs flies have the highest fitness of any genotype C. XiY flies and XsY flies have equal fitness D. XiXs flies XsXs flies have equal fitness
Answer: 1A. 40% is The Answer C 2a: A is the answer XiXs and XsY
3a Answer is A
Explanation: 1A. 40% is The Answer:
random mating point to the directiojn to Hardy–Weinberg genetics. all males receive a Y chromosome from their fathers, male contribution can be ignored; while we focus on the type of chromosome the females will donate.
assign Xi as p in the H–W equations, and Xs as q. 15% of the females are XiXi
35% are XsXs (35% qq), (15% pp), 50% are XiXs (50% pq) put these values into the H–W equation for genotype frequency
(pp +2pq + qq = 1)
gives us 0.15 + 0.50 + 0.35 = 1; solving for p and q gives us approximate values of p = 0.4 and q = 0.6.
H–W equilibrium state that allele frequency remain constant from generation to generation, males can inherit either Xi (p) or Xs (q), the percentage
of XiY males equal the frequency of the Xi allele: therefore p = 0.4 which is same as 40%.
2A
34 daughters and 38 sons.
18 sons only make daughters, remainder have equal number of each
must be A.
- male must be XsY, or else the 1st gen would ONLY be females
- only half the sons' kids have it so mother must be XiXs
3a.
Answer:
A
Explanation:
A client is undergoing a cytotoxic chemotherapy regimen for the treatment of stage III lung cancer. What effect will this regimen likely have on the client's hemostatic function?
Answer: The client's platelet count will decline.
Explanation:
The client platelet count will decrease as it is a side effect of the cytotoxic chemotherapy regimen. Chemo destroys the cells that grow rapidly including the cells in the bone marrow which are responsible for producing platelets.
The low platelet count in the body is known as thrombocytopenia, a common side effect of chemo.
The cut on the body cannot be cured easily due to this problem of the body but this is common side effect of chemotherapy.
Bioremediation is _____. a. the modification of prokaryotes for industrial purposes b. the use of prokaryotes in producing pharmaceutical products c. the use of organisms to remove pollutants from the environment d. the use of prokaryotes in producing transgenic organisms e. the use of biological processes to remedy diseases
Answer:
The correct answer is c. the use of organisms to remove pollutants from the environment
Explanation:
Bioremediation is a process in which living organisms are involved in the treatment and removal of pollutants from the environment. Bacteria, fungi, and archaea are the organism that is widely used in bioremediation because they reproduce very fast.
These organism works on environmental pollutant and break them into simpler and harmless compound, for example, Alcanivorax or Methylocella Silvestris are the bacteria which is used to clean the oil spills in the oceans. Therefore the correct answer is c.
Name the hormone secreted by the hypothalamus that stimulates the release of follicle stimulating hormone and luteinizing hormone by the anterior pituitary gland.
Some people have low levels of calcium circulating in the blood, a condition known as hypocalcemia. While for many this disorder has little to no effect, for some it can be life-threatening. How could low levels of calcium harm an individual?
Low levels of calcium would not have any effect on synaptic transmission.
Low levels of calcium would cause sustained depolarization of the presynaptic cell.
Low levels of calcium would result in fewer signals sent between the pre- and postsynaptic cell.
Answer:
Hypocalcemia is defined as low level of calcium in the serum.
It could be harmful to an individual in the following ways:
Convulsions, arrhythmias, tetany, and numbness in the hands and feet and around the mouth occur due to lowered threshold for depolarization causing increased responsiveness.
Life-threatening complications- Laryngospasm and Cardiac arrhythmias can arise.
Effects on cardiac output include:
(A) Negative chronotropic effect, or a decrease in heart rate.
(B) Negative inotropic effect, or a decrease in contractility
A nurse needs to examine a client's thyroid as part of the head and neck assessment. How should the nurse instruct the client to position his head to best facilitate this exam?
Final answer:
To facilitate the examination of the client's thyroid as part of the head and neck assessment, the nurse should instruct the client to hyperextend their neck by lifting up their chin and leaning their head back as far as possible while keeping their shoulders relaxed.
Explanation:
To facilitate the examination of the client's thyroid as part of the head and neck assessment, the nurse should instruct the client to hyperextend their neck. This position allows for better visibility and palpation of the thyroid gland. The nurse can ask the client to sit or lie down and then, with their chin lifted up, lean their head back as far as possible while keeping their shoulders relaxed.
Plants where light-independent reactions take place in bundle sheath cells (different cells than where light-dependent reactions occur) are using what kind of photosynthesis?
Answer:
C4 type of photosynthesis
Explanation:
The process of photosynthesis takes place in two phases: the light-dependent phase and light-independent phase ( Calvin cycle).
The RUBISCO enzyme which catalyses the reaction of Calvin cycle has the binding affinity for both carbon dioxide and oxygen. When the enzyme binds to the oxygen results in the loss of ATP through a process called photorespiration.
To reduce the effect of photorespiration, some plants have made morphological adaptations in the chloroplast by separating the site of light-dependent phase and light-independent phase.
The light-dependent phase takes place in the mesophyll cells while the Calvin cycle takes place in the bundle sheath cell surrounding the leaf veins. These plants are known as C4 plants.
Thus, the C4 type of photosynthesis is the correct answer.
Plants where light-independent reactions take place in bundle sheath cells
are using the C4 photosynthesis.
Photosynthesis involves the process by which green plants manufacture
their food and it involves the light and dark phase.
The light independent reaction takes place in the bundle sheath cells to
produce an intermediate four-carbon compound. These compound further
splits into a three-carbon compound for the light independent reactions.
C4 photosynthesis is known to produce plants which have more fitness as a
result of Rubisco located in the bundle-sheath cells being able to function at
very high carbondioxide concentrations and lower nitrogen level.
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When Gregor Mendel crossed a tall plant with a short plant, the F1 plants inherited A. one allele from each parent. B. two alleles from each parent. C. three alleles from each parent. D. four alleles from each parent.
Answer:
A (one allele from each parent)
Explanation:
According to Mendel's experiments, an organism receives two forms of a gene called allele, one from each parent. He discovered in his law governing heredity that an organism will undergo meiosis and each of its gene variant (allele) will get separated into gametes (law of segregation). These gametes randomly combine when mated to yield two alleles in each offspring i.e. one from the male parent and one from the female parent.
He crossed pea plants in his experiment to observe the height trait. He crossed purebreeding pea plants that are homozygous dominant (Tall, TT) and recessive (short, tt). He realized that the F1 offsprings possess two alleles that is a combination of both alleles from the parent i.e. Tt.
He also realized that all the F1 offsprings are tall, which brought about his law of dominance, which says that an allele is capable of masking the expression of another in a heterozygous state. The allele that masks is called DOMINANT allele while the allele that is masked or covered up is RECESSIVE allele.
Hence, the F1 offsprings received a dominant allele (T) and recessive allele (t) from each parent to make up their genotype.
During the rock cycle, subduction pushes rock into the mantle. The rock melts into magma, which will eventually cool into _____.
A. sedimentary rock
B. igneous rock
C. metamorphic rock
D. sandstone
Answer:
B. igneous rock
Explanation:
Igneous rock are the rocks which are formed due to the cooling of magma over the time.
There are majorly of two types
Intrusive igneous rocks : These are the rocks which are formed by the cooling of magma under the crust
Extrusive igneous rocks : These are the igneous rocks which are formed due to the cooling of magma on the crust of the Earth.
is being gay a gene?
Answer: No
Explanation: Being gay is showing preference to the same gender nothing more, nothing less
Answer:
no
Explanation:
The human genome contains 3.4×109 base pairs. The length of linker DNA in mammals is 50 base pairs. Approximately how many nucleosomes are required to organize the 10-nm-fiber structure of the genome?
Answer:
1.7 x 107 nucleosomes.
Explanation:
The number of nucleosomes can be calculated by the following formula:
Nucleosomes = Genome size/ total number of base pairs.
Here, the genome size is 3.4×109.
Total number of base pair = number of base pairs in nucleosome core particle + linker DNA.
Total number of base pair = 146 + 50 = 196.
Number of nucleosome = 3.4×109 / 196.
Number of nucleosome = 1.7 x 107 nucleosomes.
Thus, the answer is 1.7 x 107 nucleosomes.
You want to engineer a eukaryotic gene into bacterial colony and have it expressed. What must be included in addition to the coding exons of the gene?A) the introns B) a bacterial promoter sequence C) eukaryotic polymerases D) eukaryotic tRNAs E) eukaryotic ribosomal subunits
Answer:
B) a bacterial promoter sequence
Explanation:
Promoters are the specific DNA sequences that are required for the expression of genes. These DNA sequences direct the RNA polymerase to bind to the specific regions of the gene. For example, the DNA sequences present at -10 and -35 regions of genes of E. coli interact with the sigma subunit of RNA polymerase and direct it where to bind during the process of transcription.
Eukaryotic genes do not have the prokaryotic promoters. Therefore, bacterial promoter sequences should be added to a eukaryotic gene to allow its expression in a prokaryotic cell.
A scientist is studying a biome that experiences large seasonal fluctuations in both temperature and precipitation patterns.
Which of the following would best characterize the organisms that inhabit the biome?
answer choices
Habitat specialists would be most abundant, because they have broad niches.
Generalists would be most abundant, because the resources available would be constantly changing.
Generalists that feed only on animals would be more abundant in the summer months, while generalists that feed only on plants would be more abundant in the winter months.
Specialists that live in trees would be more abundant in the summer months, whereas specialists that live in caves would be more abundant in the winter months.
Answer:
Generalists would be most abundant, because the resources available would be constantly changing.
Explanation:
A generalist species is a species that can live and survive in different types of environments, and also have different range of diets it can feed on. Ominivores such as raccoon is an example of a generalist species which has varied diets and can survive in different environmental conditions, enabling it to maintain its population from season to season.
Organisms that would inhabit a biome that experiences large seasonal fluctuations in both temperature and precipitation patterns is best characterized by the abundance of generalist species, be because the resources available would be constantly changing.
In a biome with large seasonal fluctuations in temperature and precipitation, generalists would be most abundant, as they can adapt to a broad range of environmental conditions and resources.
Explanation:In a biome with large seasonal fluctuations in temperature and precipitation, the most abundant organisms would likely be generalists. Generalists are species that can adapt to a broad range of environmental conditions, and do not specialize in any particular niche or resource. When resources are constantly changing, as in such a biome, it would be challenging for specialists with narrow niches to survive. For instance, in a fluctuating environment, a generalist might be an omnivore that can switch between different food sources depending on their availability, while a specialist might only be able to feed on a specific type of plant that may not be available all year round.
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An efficient way to search for and insert a value in a cell when the desired value is stored elsewhere in the worksheet or even in a different workbook.
Answer:
An efficient way to search for and insert a value in a cell when the desired value is stored elsewhere in the worksheet or even in a different workbook is by using lookup functions.
Explanation:
Lookup function is the built in function of excel that helps in returning the certain value form specific row or column.When the value is stored in the worksheet we can easily insert that desired value in the cell by the use of lookup functions. VLOOKUP and HLOOKUP are the lookup unctions that searches the value in column and row respectively.In COPD, the body attempts to improve oxygen-carrying capacity by increasing the amount of red blood cells. Which term refers to this process?
Answer:
Polycythemia
Explanation:
Polycythemia is best defined as a substantial red blood cell increase in the blood. The bodies of individuals with Chronic obstructive pulmonary disease (COPD) increase their oxygen levels through polycythemia.
Assessment of a client with diabetes reveals that the toes are dark in color and the skin is shrunken and wrinkled, with a clear delineation between affected and unaffected regions. This client likely has:_________.
Answer:
Dry gangrene
Explanation:
Dry gangrene occurs when blood supply to tissues gradually stops. The affected part becomes dry, shrinks and turns brownish to black (like a mummy). The line of separation is formed between the gangrenous part and the viable part of the tissue. The gangrenous part consists of inflammatory granulation tissue. It occurs mainly in diabetic patients or people suffering from arterial blood vessel diseases.