Answer: They are made up of lipid bilayers. Furthermore, their main function is to enclose different structures of the cell regulating the passage of molecules through the membrane. Also, they act as semi-permeable membranes.
Explanation:
In metaphase I of meiosis I, the pairs of homologous chromosomes, also known as bivalents or tetrads, line up in a random order along the metaphase plate. The random orientation is another way for cells to introduce genetic variation.
Answer:
Population
Explanation:
A population in biology, is simply a group of individual organisms of the same species sharing a common gene pool that are dwelling in a similar habitat or geographical area. The individuals of a group have the capability to interbreed with each other to produce viable offspring that are fertile, however, interbreeding with other similar groups is usually not successful. Also, genetic variation exists within individuals of a population. Examples of a population are: mountain gorillas in Africa, African elephants etc.
Yes there is more to life