The five main characteristics are foot region, hard exoskeleton, bilateral symmetry, left and right limbs and a segmented body.
In small intestine millions of micro villi are present for greater absorbption of digested food.
the skin covering the human body consists of 2 layers.
Answer: Hetrotypes are organisms (anything that lives) that can make it's own energy without absorbing it from other organisms. Example: Flowers, they get there energy from the sun, not from eating and absorbing other organisms.
Explanation:
