Which statement best explains why cells in organisms such as animals reproduce 1) cell division animals repair old cells. 2) cell division produces glucose which is used as food. 3) reproduction breaks down glucose into useful energy. 4) reproduction releases energy necessary for animals to survive.

As a result of these processes the single celled organism accomplishes

As scientists have investigated evolution from a variety of fields, they have found that some of darwin's orginal ideas were inaccurate or incomplete. t explanation provided by evolution was updated each time to reflect the new information they found. what does this suggest about the theory of evolution? it has become a stronger and clearer theory as new information is collected.

Abird flies by moving its wings up and down. which two systems are most directly responsible for the movement of a bird's wings? a. skeletal and muscular systems b. respiratory and muscular systems c. skeletal and digestive systems d. respiratory and digestive systems