Hi, I need help with how to answer these questions. Any type of assistance will be appreciated :)
1. In your own words, describe the baroreceptor reflex and why it is important.
2. Describe what would happen to the diameter of the blood vessels during exposure to cold temperatures in endotherms, and why this change would occur.
3. List and describe as many behavioral adjustments as you can think of that would help an ectotherm regulate its body temperature.
4. What relationship would you expect to see between cold temperature and metabolic rate in an ectotherm? Would this also be the case for an endotherm? Why or why not?
1. In your own words, describe the baroreceptor reflex and why it is important.
2. Describe what would happen to the diameter of the blood vessels during exposure to cold temperatures in endotherms, and why this change would occur.
3. List and describe as many behavioral adjustments as you can think of that would help an ectotherm regulate its body temperature.
4. What relationship would you expect to see between cold temperature and metabolic rate in an ectotherm? Would this also be the case for an endotherm? Why or why not?
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I can't really remember this lab, it was so long ago haha
so number 1 I can't think of right now
2.) Blood vessels constrict to avoid loss of heat.
3.) Things like laying out on rocks (as in the case of animals like snakes) which either have heat on the rock from being in the sun or the sun can heat them up as they are laying on it.
4.) Ectotherms take their temperature from their environment as I recall. So as temperature drops, metabolic rate decreases. No this would not be the case for endotherms because they are warm blooded and do not take their temperature from their environment.
so number 1 I can't think of right now
2.) Blood vessels constrict to avoid loss of heat.
3.) Things like laying out on rocks (as in the case of animals like snakes) which either have heat on the rock from being in the sun or the sun can heat them up as they are laying on it.
4.) Ectotherms take their temperature from their environment as I recall. So as temperature drops, metabolic rate decreases. No this would not be the case for endotherms because they are warm blooded and do not take their temperature from their environment.
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answer to number 2.
The blood vesseles close to the skin get smaller, this is called vasoconstriction and helps maintain a warm body temperature
3. behavioral adjustments like wanting to curl up into a ball is one. this decreaces the surface area to volume ratio and decreaces the amount of heat lost via radiation. things like shivering DO NOT count as i think they are involentry and fall under homeostasis
I dont think I can answer the other two questions confidently sorry, hope this is a help though :)
The blood vesseles close to the skin get smaller, this is called vasoconstriction and helps maintain a warm body temperature
3. behavioral adjustments like wanting to curl up into a ball is one. this decreaces the surface area to volume ratio and decreaces the amount of heat lost via radiation. things like shivering DO NOT count as i think they are involentry and fall under homeostasis
I dont think I can answer the other two questions confidently sorry, hope this is a help though :)