Hormones are proteins that? A) Coordinate different body systems
B)Cause catabolic reactions
C) Aid in digestion of food

I'm not sure that it's the write answer still..

Explanation:

B)Cause catabolic reactions

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

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.