Question

1. which of the following is an example of an organism maintaining homeostasis? (choose all that apply)

a) a wolf panting to cool itself.
b) a spider catching an insect in a web.
c) a cricket becoming infected by a virus.
d) a desert fox digging tunnels in the ground during the hottest part of the day.

1. in which of the following ways does perspiring (sweating) help the body to maintain homeostasis?

a) by decreasing body temperature.
b) by increasing blood sugar levels.
c) by increasing the amount of fluid in the body.
d) by reducing the amount of carbon dioxide in cells

Explanation:

• Question 15:
• Option A: A wolf panting to cool itself helps maintain a stable internal body temperature (thermoregulation), which is a form of homeostasis.
• Option B: A spider catching an insect is a feeding behavior related to obtaining energy, not directly maintaining internal balance (homeostasis).
• Option C: A cricket being infected by a virus is a pathological situation and disrupts the normal internal balance of the cricket.
• Option D: A desert fox digging tunnels during the hottest part of the day is a behavior to avoid over - heating, helping to maintain its internal body temperature (thermoregulation), a form of homeostasis.
• Question 16:
• Option A: Perspiration (sweating) helps the body maintain homeostasis by cooling the body. As sweat evaporates from the skin, it takes heat away from the body, decreasing body temperature.
• Option B: Perspiration does not increase blood sugar levels. Hormones like insulin and glucagon regulate blood sugar.
• Option C: Perspiration actually decreases the amount of fluid in the body (as sweat is lost), but this is part of the cooling mechanism (related to temperature homeostasis, not fluid volume in a positive - balance sense here).
• Option D: Perspiration is mainly related to temperature regulation. Reducing carbon dioxide in cells is more related to the respiratory system (gas exchange in lungs and cells).

Answer:

1. A. A wolf panting to cool itself, D. A desert fox digging tunnels in the ground during the hottest part of the day
2. A. By decreasing body temperature