Answer: student 4
Explanation: she is doing the same exact experiment all over again and not changing the things, which can make it even more of an accurate answer
<span>Cortisol level is low and ACTH is high. This is signs of primary adrenal insufficiency. Low cortisol caused by damage to the anterior pituitary, and ACTH is elevated to compensate.</span>
<span>The correct answer is b. Option a is incorrect because these models can demonstrate scientific theories, but they don't prove scientific theories (you would need experiments for that). Option c is incorrect because the models aren't always representing something abstract (i.e. DNA is very real, just very small). Option d is incorrect because they don't precisely mimic something in nature, but instead help us visualize something in nature that is difficult to see or comprehend.</span>
A. the mitochondria and chloroplasts are much different in structure than bacteria
By intruding mutations, which are the ultimate source of biological diversity. I think this is it.
