Which is required for both
anaerobic respiration and aerobic respiration?
•oxygen
• water
• mitochondria
• glucose

How does natural selection change thephenotypes within a population over time?

Which statement correctly describes a way that mutations increase the likelihood that a species will survive in a changing environment

Hector is back from his morning run and is feeling light-headed because his energy is depleted which food item will provide him with a quick source of carbohydrates