Which of the following statements about the control of blood volume and blood pressure is false?
A. Angiotensin II stimulates the release of
antidiuretic hormone, which increases salt
and water uptake by the distal convoluted
tubule.
B. A drop in blood pressure stimulates the
cells of the juxtaglomerular apparatus to
release renin.
C. Inactive angiotensinogen is converted to
angiotensin II by an enzyme released from
the lungs.
D. Angiotensin II causes the smooth muscle
in the walls of the arterioles to contract.
E. Blood pressure and volume are monitored
by baroreceptors in the aorta and carotid
bodies.
A
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Answer the following statements true (T) or false (F)
1. All infectious diseases are caused by pathogens. 2. Pathogens greatly outnumber nonpathogens. 3. Using microorganisms to clean up the environment is known as bioremediation. 4. Microorganisms are essential in the field of genetic engineering. 5. Microorganisms probably appeared on earth about 3.5 million years ago.
If an mRNA carries AUCGUG as a sequence,
what would be the sequence of the DNA complement to the sequence of DNA that is the complement to the mRNA?
a. ATCGTG b. TCGCAC c. CGATCT d. GCTACA e. UAGCAC
Which type of organisms were likely the first land animals?
a. birds b. reptiles c. mammals d. amphibians e. arthropods
The region in which populations interact with each other and with the physical environment is called a(n)
A. ecosystem. B. biosphere. C. community. D. entity. E. biosystem.