Erythropoietin is produced by the _______ and sensed by the _______
a. liver; kidney
b. kidney; bone marrow
c. red blood cells; bone marrow
d. red blood cells; liver
e. liver; red blood cells
B; Erthyropoietin is produced by the kidney and liver in response to low O2 levels. This stimulates the bone marrow to produce more red blood cells. The red blood cells themselves do not divide, having lost their nuclei.
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What substance is most closely associated with
the effects of ADH?
a. water b. urea c. fatty acids d. amino acids e. glucose
The most common method of asexual reproduction in protists is ________.
A. cytokinesis B. fission C. fragmentation D. budding
In humans, "unattached" earlobes are dominant over "attached" earlobes. Widow's-peak hairline is dominant over non-widow's-peak hairline. Use E and e for the earlobe phenotype alleles and W and w for the hairline phenotype alleles. A woman with
unattached earlobes and a widow's peak and a man with attached earlobes and a widow's peak have a child. The child has attached earlobes and a non-widow's-peak hairline. What are the genotypes of the parents? A) EeWw and eeWw B) EeWw and EeWW C) EEWW and eeww D) EEWW and eeWw E) EeWw and eeww
Mesozoic
What will be an ideal response?