Which adrenal gland hormone plays a role in urine concentration in the kidneys?
a. cortisol
b. antidiuretic hormone (ADH)
c. aldosterone
d. sex hormone
e. epinephrine
c
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Cartilage injuries do not repair themselves because ________. a. All of these choices are reasons cartilage injuries do not repair themselves
b. cartilage does not receive nutrients very easily c. cartilage does not contain blood vessels d. None of these are reasons as cartilage does heal itself. e. cartilage does not divide in adults
Which of the following is not a function of an antibody?
A) activate complement cascade B) attract phagocytes C) stimulate helper T cells D) neutralize toxins
The reaction ATP + H2O ? ADP + Pi is classified as an:
a. endergonic reaction. b. enthalpy reaction. c. entropy reaction. d. exergonic reaction. e. electrochemical reaction
Compare and contrast the advantages and disadvantages of gas exchange in terrestrial and aquatic environments. What will be an ideal response?