It is advantageous for animals that migrate to store energy in the form of lipids rather than carbohydrates. This is because A) lipids do not form polymers. B) lipids are more dense than carbohydrates. C) carbohydrates do not supply energy to cells. D) lipids weigh less and store more energy (gram for gram) than carbohydrates.
Answers
Ans. (D). lipids weigh less and store more energy (gram for gram) than carbohydrates.
Lipids represent a class of biomolecules, made up of long hydrocarbon chains. Lipids, such as triglycerides act as major energy storage sources in plants and animals.
Lipids weigh less and contain more carbon atoms per gram as compared to carbohydrates as in carbohydrates, more oxygen is present. Due to this, lipids provide about 9 kcal (kilocalories) per gram, while carbohydrates provide about 4 kcal per gram.
Hence, it is advantageous for migratory animals to store energy in the form of lipids instead of carbohydrates.
Thus, the correct answer is option (D).
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If there were 2,000 units of biomass among the primary producers of a food chain, how much biomass would be expected among the tertiary consumers in that same food chain? 200 units 2 units 20 units 100 units 1,000 units
Use the words haploid cell, diploid cell, and fertilization all together in a sentence.
Compared with the walls of arteries, the walls of capillaries.A. are thicker B. are thinner C. lack valves D. have more resistance
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The tropical rainforest has a moderate temperature with seasonal changes. The amount of rainfall in a tropical rainforest is high. It has a thick canopy of trees which filters out a majority of the sunlight which is why the forest floor is almost shaded.
It's temperate rainforests...................................................
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Answer:
The correct answer would be "Adaptive radiation happens over a relatively short time".
Adaptive radiation refers to the process of evolution in which ancestor organisms diversify rapidly into a wide variety or new forms as a result of environmental changes, availability of new resources, availability of new niches, or new challenges.
Accumulation of adaptive radiations over a long period of time results in speciation.
For example, Darwin's finches adapted according to their feeding behavior.
Answer:
B. on edge
Explanation:
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That is the relation between them.
Final answer:
Adaptation is the adjustment organisms make to survive while natural selection is the mechanism that drives this process. For example, birds with larger beaks are more likely to survive and reproduce if they have access to larger seeds. This leads to an increase in beak size in the bird population over time.
Explanation:
The relationship between adaptation and natural selection is that natural selection is the mechanism that drives the process of adaptation. Adaptation refers to the way in which organisms adjust to their environment in order to survive and reproduce. Natural selection, on the other hand, is the process by which certain traits become more or less common in a population over time due to their influence on an organism's ability to survive and reproduce.
For example, let's consider a population of birds with different beak sizes. If a certain type of seed becomes more abundant in their environment, birds with larger beaks may have an advantage in cracking open the seeds and obtaining food. As a result, these birds would be more likely to survive and pass on their genes for larger beaks to their offspring. Over generations, the average beak size in the bird population would increase due to natural selection.
In summary, adaptation is the process by which organisms adjust to their environment, while natural selection is the mechanism that drives adaptation by favoring traits that increase an organism's chances of survival and reproduction.
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Answers
Final Answer:
If an infectious disease can be transmitted directly from one person to another, it is a B) Communicable disease.
Explanation:
Communicable diseases are those that can be transmitted from one person to another, either directly or indirectly. These diseases are caused by infectious agents such as bacteria, viruses, or parasites. When an individual with a communicable disease comes into contact with a susceptible host, there is a potential for transmission.
The term "communicable" refers to the ability of the disease to be communicated or spread from one person to another through various means, including direct contact, respiratory droplets, bodily fluids, or other modes of transmission. Susceptible hosts are individuals who are at risk of contracting the disease when exposed to the infectious agent.
Options C and D, "Port of entry to a host" and "Port of exit from the reservoir," are related to the mechanisms of disease transmission but do not define the type of disease. The correct answer, in this case, is B) Communicable disease, as it directly addresses the nature of the disease that can be transmitted from person to person.
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Answer:
B) Communicable disease
Explanation:
A communicable disease is an illness cause by a pathogen (like bacteria, virus, or parasite) that can be spread from person to person through forms of transmission, such as direct contact, sneezing/coughing, or contaminated objects. Examples of communicable diseases include the common cold and COVID-19.
Answers
The correct answer is explained below:
Explanation:
- According to the question,
- The dominant allele for the photic response gene is: H
- The recessive allele for the photic response gene is: h.
- It is said that both the man and the woman are heterozygous for the photic response trait, that is, both of them have the Hh genotype.
- Both sneeze when exposed to bright sunlight, hence both of them show the photic response phenotype.
- This means the photic response trait is a dominant trait.
- Gametes produced by both the man and woman are: H and h.
- Mating the man with the woman, we get offspring with the following genotypes and phenotypes.
H h
H HH Hh
Photic Response Positive Positive
h Hh hh
Photic Response Positive Negative
- From the above Punnett square we get,
- Percentage of offspring expected to show photic response trait =
%.
- Percentage of offspring expected to not show any photic response trait =
%.