A diagram of the sequence of movements or actions of people or things involved in a complex system or activity.
D is the answer. A gene is a part of a chromosome.
For an animal to be extinct none more of that specific species must exist on Earth. This makes it impossible for that species to come back to life.
Answer:
Prokaryotae, Protoctista, Plantae
Explanation:
In oxidation, oxygen is needed to create a chemical reaction.