<span>DNA methylation is a process that can change the activity of a gene without rearranging the DNA sequence. The mechanism most often is used to inactivate genes.</span>
_______________ reactions transfer energy to the surroundings, usually as heat.
C. Exothermic
Gametes that are the same in size and shape. Having gametes of different size and shape. Usually oogamous organisms have eggs and sperm. The female gonad in animals.
Answer:
Explanation:
1. a. Sunlight hitting the Earth's surface is the source of all energy in the pyramid.
b. 25,500 kcal is provided by this source to a square meter per year.
