Euglena. It does photosynthesis like a plant, and moves around and eats like an animal.
They help form D organ system which is the
digestive system
its a stimuli a memory is something you can choose to remember or to do
Answer: Option C.
Population density is the total number of organisms within a fixed area.
Explanation:
Population density is the total number of organisms per unit area. Population density is calculated by dividing the number of organisms by the unit area either in square kilometers, squaremeters, square miles.
Population density =number of organisms ÷ unit of land area.
