Answer:
The correct answer is internal and external signals regulate the progression of the cell cycle at various critical check points.
Explanation:
The cyclic event that helps to prepare the cell for division is termed as cell cycle.Cell cycle are regulated by various internal and external factors which regulates the passage of cell through various critical check point.
For example Maturation promoting factor helps in the progression of frog egg oocytes cells from G2 to M phase.
G1 cyclin CDK helps in the passage of cell from G1 to S phase.
Phospholipids make up an important class if lipids for the construction of cell membranes. The phospholipids are not "true fats" because they have one of the fatty acids replaced by a phosphate group.
Answer:
Hydrogen bonds provide higher surface tension to a liquid. If you disrupt hydrogen bonds, surface tension will decrease. That's why at high temperature, surface tension is lower due to disruption of hydrogen bonds. Hydrogen bonds can be disrupted by the addition of surfactants and surface tension can be reduced also. Detergent is a surfactant because it interferes with the attractive forces between the water molecules.
AA
AO
two people who are AA have an AA kid. someone who’s AO and someone who’s AO could
