The first organisms to break down rocks are mosses and lichens. True or False.
Pine trees, maple trees, and palm trees are the first trees to appear in primary succession. True or false.

1. true

2. false

Explanation:

the attachment shows mosses and lichens first (in stage 1)

the first trees shown are cottonwoods (in stage 2)

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.