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Harman [31]
3 years ago
6

Which of the following is an observation made by Darwin that supports his theory of natural selection? A. All organisms that are

born survive. B. More organisms are born than can survive. C. Insects produce many offspring but produce few eggs. D. Insects never produce offspring.
Biology
2 answers:
shutvik [7]3 years ago
7 0
What supports natural selection is that more organisms are born that survive: so that only the fittest would survive. The natural selection then selects the strongest individuals to surive and procreate.
german3 years ago
3 0

Correct answer: B). More organisms are born than can survive

The Darwin theory of natural selection states that living things with beneficial traits give more offspring than others. This causes a change in the traits of living organism over time.

More individuals are produced in each generation that can survive, there is a phenotypic variation among the population and it is inheritable. Those individuals that are better suited to the environment can survive and are able to produce offspring.

Hence, the correct answer would be option B.


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An example of an epigenetic change is
Oksana_A [137]

Answer:

The correct answer is option d.

Explanation:

An illustration of epigenetic change is a microbe, which can stimulate modifications in the host DNA, causing suppression of defenses or weakening of individual cells. Epigenetic changes modify the physical composition of DNA.  

One of the examples of epigenetic change is DNA methylation. DNA methylation refers to the supplementation of methyl group, which inhibits some of the genes from getting expressed. One of the conditions of DNA methylation is cancer.  

In the majority of cancer, the tumor cells go through global hypomethylation. The tumor suppressed genes seem to turn highly methylated in the conditions of cancer.  

5 0
3 years ago
Which have scientists learned from studying seismic waves that travel through earth’s interior?
DENIUS [597]
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5 0
3 years ago
Describe the structures of proteins and nucleic acids, and then explain the relationship between these two molecules within a ce
barxatty [35]
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    </span><span>
 Basically Proteins are chains of amino acids, nucleic acids are chains of nucleosides (base+sugar+phosphate), and the sequence of nucleic acid results in the specific sequence of amino acids in the protein, finnally determining its shape and function. </span>
4 0
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how does tourism and over hunting affect the populations of the Australian Freshwater Crocodile (Crocodylus Johnstoni) ???
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6 0
3 years ago
What is the best definitionof chemical energy?
Sophie [7]
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6 0
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