I believe the answer you are looking for is C.
Hope this helps you out!
Thanks!:)
What a great way to see how bacteria exposed to Martian-like conditions will survive. By testing how well these bacteria do in the stratosphere we can gain insight into several things. 1) the likelihood that any bacteria still survives on Mars 2) how well bacteria introduced to Mars could survive and if there are existential risks to doing so and 3) how bacteria introduced to harsh conditions react more broadly, even on earth.
Well, lets go over each one and think of how our body uses each part.
A. If we're cold, there's no reason for it to dilate. When we dilate our vessels, we're going to have more blood flow to that area. We don't want more blood flow to that area why? Because we'll begin to lose heat that way. We will actually vasoCONSTRICT instead to shunt the blood away from the surface to preserve our internal body heat. Therefore, this is NOT an option.
C. Secretion of sebum on the skin is not used to protect against the sun. Our sebum is actually used to keep out bacteria and microorganisms. This is NOT an option.
D. Depending on the wording this one **could** be correct but because it says that it's adding their sweat, that's false. The eccrine and the apocrine glands are two sweat glands, though.
E. Blood vessels near the surface of the skin can dilate, increasing blood flow and heat loss. This is TRUE! In order for us to get rid of some of our heat, the vessels will dilate and causes the blood to enter to the surface of the skin allow the heat to rise up and out and we can get rid of the excess heat.
So, now we've broken them all down, you can see that the only response that is correct is E.
Not sure if this applies to biology, but I’m using more statistics for this.
Basically, when you change the y-axis to 300, you are able to exaggerate the patterns on the graph. From afar, or starting the y-axis at 0, a person cannot easily identify the increases and decreases of CO2. However, with a y-axis at 300, you see these changes much more easily, so you can make accurate inferences and conclusions regarding the graph.
Hope this helps