Answer:
b.It increases the likelihood that daughter cells contain different genetic material.
Explanation:
Morgan and Cattell for the first time used the term ‘crossing over’. Crossing over takes place during prophase I of meiosis. During crossing over, chromosome segments of non-sister chromatids of homologous chromosomes get exchanged. As a result, the daughter cells acquire different genetic materials. Thus, it provides genetic variation by creating a new combination of genes or get recombination and produces hybrids.
If it killed the top level of an ecosystem it would damage the whole ecosystem because it's connected. An organism depends on that top organism which would mean that is that organism dies it would affect the organism that depends on it.
Answer:
The answer is Estrogen.
Explanation:
The hormone that causes the new growth of the endometrial lining of the uterus is ESTROGEN. During the first days of menstruation, estrogen levels are low; In the middle of the follicular phase the follicle that is going to ovulate has already been selected, is when estrogen levels begin to rise. It is considered as an index of the fertile period of the menstrual cycle. Glandular proliferation occurs at the endometrial level (Proliferative phase).
A triploid cell is the structure form during angoisperm fertilization. The cell are created in the process known as double fertilization into the endosperm which is mostly are polyploid. These are typicallly triploids that is they contain three sets of chromosomes but they varies widely from diploid (2n) to 15N.