in parallel to changing environmental conditions, evolutionary changes in the plant structure, shape and reproduction were necessary. In order for plant to exist in terrestrial environment. Explain​

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.

on island x the species needed to adapt because they were being subject to predators which didn't inhabit island y.  

artificial selection

explanation:

this occur when man select base on their intelligent