¨The Integumentary System¨" 1. What are the four parts of the integumentary system?

2.What are the three functions of the skin?

3. In terms of protection, what are 2 bad things that our skin keeps out of our bodies?

4. Other than sweating, what can skin do to keep our bodies cool?

5. What are the three layers of skin called?

6. What do you call the outermost layer of skin that consistently dies off and is replaced by new cells?

7. The dermis is thicker than the epidermis. This allows it to contain 3 important structures. What are they called?

8. The hypodermis is the lowest layer of skin. What is its function?

Calvin ate a candy bar, which caused his body's blood glucose levels to become unbalanced. his body responded by initiating a feedback mechanism to return his body to homeostasis. place the steps of this feedback mechanism in order, starting with the blood glucose imbalance that occurred after calvin consumed the candy bar. a) calvin's blood glucose levels decreased. b) calvin's pancreas stopped secreting insulin. c) calvin's body cells started to take up glucose and store it as glycogen. d) calvin's blood glucose levels increased. e) calvin's pancreas started secreting insulin.

Joe is breeding cockroaches in his dorm room. he finds that the average wing length in his population of cockroaches is 4 cm. he chooses the six cockroaches that have the largest wings; the average wing length among these selected cockroaches is 10 cm. joe interbreeds these selected cockroaches. from earlier studies, he knows that the narrow-sense heritability for wing length in his population of cockroaches is 0.6. a. calculate the selection differential and expected response to selection for wing length in these cockroaches. b. what should be the average wing length of the progeny of the selected cockroaches?

Out of the seven main animal groups (fish, mammals, birds, insects, reptiles, amphibians, and arachnids), how many contain members with internal backbones? a. 5 b. 3 c. 7 d. 1