Answer:
The density of a population can be regulated by various factors, including biotic and abiotic factors and population size. Density-dependent regulation can be affected by factors that affect birth and death rates such as competition and predation.
Food, they make food for animals like elephants that eat plants
Answer:
Its reactivity, or tendency to form chemical bonds with other atoms.
Explanation:
They don't require big ones because they're able to keep moving and provide food and energy for themselves while plant feels are not able to do the same, thus giving them lather vacuoles.
