Question

1. what role does insulin play in homeostasis?

a. it regulates body temperature
b. it amplifies the effects of glucagon
c. it decreases blood sugar levels
d. it increases blood sugar levels

1. what happens during a positive feedback loop in the endocrine system?

a. hormone production is stopped
b. the response is amplified until a specific endpoint is reached
c. the response is diminished
d. the body returns to homeostasis

1. which part of a neuron receives signals from other neurons?

a. soma
b. axon
c. myelin sheath
d. dendrites

1. what is the role of glucagon in blood sugar regulation?

a. to store glucose in muscles
b. to lower blood sugar levels
c. to raise blood sugar levels by prompting the liver to release glucose
d. to inhibit muscle contraction

1. which type of immunity involves the creation of memory cells for future protection?

a. adaptive immunity
b. passive immunity
c. innate and adaptive immunity
d. innate immunity

1. what is the function of the parathyroid glands?

a. to control calcium levels in the blood
b. to secrete insulin
c. to produce melatonin
d. to regulate reproduction

1. what is the primary function of the ovaries in the female reproductive system?

a. fertilize an egg

b. transport sperm
c. produce eggs and hormones
d. support fetal development

Explanation:

1. Insulin acts to lower blood glucose by promoting uptake and storage.
2. Positive feedback amplifies responses until an endpoint is reached.
3. Dendrites receive signals from other neurons.
4. Glucagon raises blood sugar by triggering liver glucose release.
5. Adaptive immunity creates memory cells for future protection.
6. Parathyroid hormone regulates blood calcium levels.
7. (Question text is incomplete, but based on common content: the ovaries produce eggs and hormones, which matches option c)

Answer:

1. c. It decreases blood sugar levels
2. b. The response is amplified until a specific endpoint is reached
3. d. Dendrites
4. c. To raise blood sugar levels by prompting the liver to release glucose
5. a. Adaptive immunity
6. a. To regulate calcium levels in the blood
7. c. Produce eggs and hormones