Answer:
Natural selection
Explanation:
According to Darwin's theory, natural selection is the process by which individuals better adapted to their environments have more chances to survive and reproduce, and thereby their descendants will be better represented in the next generation. This mechanism exploits the existence of natural variation among members in the population which is used to select those individuals that are better adapted (i.e., with a higher adaptive fitness) for their environments. Natural selection is a key mechanism of evolution by which species change across time.
Answer:
On a biological level, the main difference is that bacteria are free-living cells that can live inside or outside a body, while viruses are a non-living collection of molecules that need a host to survive.
Answer:
The type of competition between the members of same species for a liimted resource is known as intraspecific competition. in this type of competiton one member of same species may show aggressive behavior over others as a result he may survive while other may die if the first is dominant and overcome the resources.
<span>The Earth's precession estimated to last for 26 000 years.</span>
Answer:
No
Explanation:
One of the parents would have to have dd in order to have the disorder, since it says the disorder is found in those with two recessive alleles. The parents had a kid with the genotype DD. This means both parents had at least 1 D. Therefore, neither parent's genotype could be dd.
