Answer:
Crossing over is the substitution of genetic material in the germline. When egg and sperm cells, also known as meiosis, are formed, paired chromosomes are arranged from each relative in such a way that identical DNA chromosome sequences cross over each other.
Explanation:
Crossing resulting in genetic material shuffling is a significant cause of the genetic difference between descendants.
Answer:
The answer is obviously the organism with broad niche.
Explanation:
Organisms can have a broad niche or a narrow ecological niche. This can be explained as follows: If an organism has adapted itself to wide range of environmental conditions then it can survive changes in an ecosystem, hence it has a broad niche. Some organism adapt to only specific environmental conditions and cannot survive if it changes, such organisms are said to have narrow niche.
<span>Healthy lungs are made of tissue but it is more sponge like than thick fibrous tissue. so it true </span>
<span>The vestibule of the ear has two ssensory chambers: the utricle and the saccule, and each contin a macula with the receptors for static equilibrium.</span>
