When light shines onto a mirror, how are the angle of incidence and angle of reflection related? a. the angle of reflection is usually larger. b. if the mirror is concave, then the angle of reflection is larger. otherwise, the angle of incidence is larger. c. the angle of incidence is usually larger. d. they are always equal.

Which of the following is a main difference in cell structure between an onion cell and a human cheek cell? a. an onion cell contains one nucleus, whereas a human cheek cell contains two nuclei. b. an onion cell has a cell wall. c. a human cheek cell contains chloroplasts. d. there is no difference between an onion cell and a human cheek cell. you for your.

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Agland that serves both the digestive and the endocrine systems is called