Which characteristic of water molecules directly contributes to the remarkable "water walking"
success of the aquatic insects pictured in the accompanying figure?
a. hydrogen bonds
b. capillary action
c. nonpolar covalent bonds
d. ionic bonds
e. adhesive forces
A
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The Portuguese man-of-war is a colony of hundreds to thousands of:
a. sea anemones b. ctenophores c. hydrozoans d. jellyfish e. sponges
What is the main form of nitrogenous waste released by mammals to their environment?
a. amino acids b. urea c. ammonia d. nitrate
Familial hypercholesterolemia is a disease that is incompletely dominant. This means that
A. the dominant allele completely masks the recessive allele, so the dominant phenotype is displayed. In the case of familial hypercholesterolemia, heterozygotes will have extremely high levels of cholesterol, identical to those seen in homozygous dominant individuals. B. the dominant allele does not fully mask the recessive allele, so an intermediate phenotype is displayed. In the case of familial hypercholesterolemia, heterozygotes have moderately higher levels of cholesterol compared to normal. C. the dominant allele is equally dominant with a second (or third) dominant allele, so both phenotypes are displayed. In the case of familial hypercholesterolemia, heterozygotes have moderately higher levels of cholesterol compared to normal. D. multiple alleles exist for this trait, so multiple phenotypes are possible. In the case of familial hypercholesterolemia, heterozygotes can have a range of cholesterol levels depending on which combination of alleles exists.
In females, estrogen plays a role in all of these regarding bone remodeling except _____
enhancing the absorption of calcium from the digestive system stimulating the formation of bone inhibiting the breakdown of bone allowing for release of thyroid hormone