In an area with very tall trees shading an understory of shorter trees, all of which have epiphytes growing on them which of the following other conditions are most likely to exist as well

I believe it is that the night temps are colder and the one that says the soil has a thick layer of organic material.

Explanation:

a tetrad is the foursome during meiosis made by two homologous chromosomes that have each already replicated into a pair of sister chromatids.