Answer: genetics and mutation generate some of the variety that natural selection acts on
Explanation:
Perhaps a rule or a quota that you can only use X gallons of water per month.
Answer:
The cell membrane is the part of the cell made up of phospholipid bilayer.
Explanation:
The cell membrane is made up of two layers of phospholipids and hence these layers are known as the phospholipid bilayer. The tail of the phospholipids is made up of fatty acids and it is hidden on the inside of the structure. The heads made up of phosphate and glycerol face outwards. This structure makes the cell membrane ideal for the transport of molecules as they have both hydrophobic and hydrophilic regions.
In animal cells centrioles are located in, and form part of, the centrosome where they are paired structures lying at right angles to one another. In this context they are possibly involved in spindle assembly during mitosis. The centrosome is positioned in the cytoplasm outside the nucleus but often near to it.
It depends on if it is an aerobic or anaerobic process
