Which of the following statements is false
regarding alcohol consumption during
pregnancy?
a. The developing embryo or fetus quickly
absorbs alcohol across the placenta.
b. Symptoms of fetal alcohol syndrome
include reduced brain size and facial
deformities.
c. Cases of FAS are seriously underdiagnosed
and misdiagnosed.
d. The effects of FAS are temporary.
e. Even occasional drinking may have
negative effects
D
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The blood vessels of the umbilical cord are formed by which extraembryonic membrane?
a. yolk sac b. chorion c. allantois d. amnion e. placenta
Why is adult anatomy sometimes a misleading way to construct a phylogeny that reflects evolutionary history?
A) Adult anatomy isn't strongly influenced by natural selection. B) Convergent evolution produces similar traits in unrelated species. C) Adult anatomy is too variable within a species.
What would be a plant adaptation that increases exposure of a plant to light in a dense forest?
a. closing of the stomata b. lateral buds c. apical dominance d. absence of petioles e. intercalary meristems
Which mechanism involves the separation of the parent into two or more offspring of approximately the same size?
a. fertilization b. budding c. fragmentation d. fission