Answer:
Bacteriophage: A virus that infects bacteria, also called a phage.
Explanation:
Answer:
The population of the dart frogs drop.
Explanation:
The population of the dart frogs, and other species that eat the dart frogs will drop. The dart frogs will have a virus, but soon the other animals who eat the dart frogs will drop too because their food is going down.
Crossing over. Parts of sister chromatids will sometimes switch places with the parallel part, resulting in a completely unique DNA sequence.
These are called papillae
not really familiar with all this but I think 1. Relative dating is where they estimate or relatively guess around how old it is so you could just put something like "an estimate of the age" or something