Answer:
The nuclear envelope does not disappear in metaphase of mitosis, because it already did in prophase. ... The nuclear envelope needs to be broken apart so that the chromosomes can be found, aligned in the middle of the cell, and then pulled apart.
Explanation:
- they are both found in the same place
- they are both passed down to newer generations
- both of them can determine your traits
The two semilunar valves, the pulmonary and aortic valves, are closed, preventing backflow of blood into the right and left ventricles from the pulmonary trunk on the right and the aorta on the left.
Answer:
Ecosystem
Explanation:
The ecosystem includes a total of the abiotic and biotic components of a region. These components interact with each other and make the ecosystem self-sufficient in terms of energy and nutrients. Climatic conditions, physical factors, soil type, and its feature together make the non-living or abiotic part of an ecosystem. They interact among themselves and with the living components by nutrient cycling. All the species of living beings together make the biotic components of an ecosystem. They interact with each other by food chains and food webs.
Oceans are an example of the aquatic ecosystem while deserts are terrestrial ecosystems.
The primary function of estrogens in women is development of female sexual characteristics during puberty. (Breasts, regulation of the menstrual cycle etc.)
In males estrogen helps in maturation of the sperm and maintenance of a healthy libido.
