A, the others are unrealistic speeds.
Answer:
Explanation:
Wolves: carnivore
Deciduous Trees: Producers
Cacti: producers
Herbivorous lizards: omnivore
Rattle Snakes: Carnivore
Monarch butterfly: Producer
Algae: Producers
Killer whale: Carnivore
Hope this helps
the Nucleus
Explanation:
Known as the cell's “command center,” the nucleus is a large organelle that stores the cell's DNA (deoxyribonucleic acid). The nucleus controls all of the cell's activities, such as growth and metabolism, using the DNA's genetic information.
Gene (DNA) expression would be B