How does damming or altering the path of a river destroy wetlands?
A. Fish can no longer migrate up and down the river.
B. Wetlands can no longer obtain nutrients from annual floods.
C. Wetlands can no longer obtain oxygen from the flowing water of the river.
D. Birds can no longer get to the wetlands.
E. Increased nutrients flow into the wetlands, causing eutrophication.
B. Wetlands can no longer obtain nutrients from annual floods.
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Red blood cells are bi-concave. Their shape is determined by interior proteins anchored to the membrane termed
A. clathrins. B. phospholipids. C. cytoskeleton. D. spectrins. E. actin filaments.
How does the hypothalamus control the posterior pituitary differently from the way it controls the anterior pituitary?
What will be an ideal response?
The transporter indicated by the letter "A" in the above figure represents a(n) ____
a. active Br transporter b. sodium-potassium cotransporter c. passive potassium transporter d. calcium-phosphorus transporter e. sodium-calcium transporter
Children who are pituitary dwarfs can now grow to normal height because of
A) large supplies of growth hormone from dead animals. B) the invention of synthetic growth hormone. C) genetic repair before birth. D) genetically engineered production of growth hormone by bacteria. E) pituitary transplants.