Biology is the study of life. Humans, Animals, Plants in order to find out the information we know about different species we must study them. 1. It'll inform you about, "Why trees grow..." or "What does...do for you" 2. It's something important to learn.
G1, S-phase, G2, and mitosis
The answer is low light intensity! I hope this helps!
Phase where crossing over chromosomes occur is prophase 1