Which of the following is a biotic factor that affects plant growth?

a
organic nutrients in the soil

b
light availability

c
amount of rainfall

the answer is A organic nutrients in the soil

maritime tropical may be your answer.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.