Which of the following changes would be expected to cause vasoconstriction in an arteriole?
A. increases in carbon dioxide
B. increases in lactic acid
C. increases in potassium ion concentration
D. decreases in pH
E. None of the changes listed for this question would cause vasoconstriction.
E. None of the changes listed for this question would cause vasoconstriction.
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____ begins when the chromosomes align on the spindle equator.
A) early prophase B) late prophase C) anaphase D) metaphase E) telophase
Primary production is generally highest in
A. taiga. B. temperate rain forests. C. temperate oceans. D. tropical rain forests. E. tropical oceans.
A nematocyst is a type of stinging cell
____________________ Indicate whether the statement is true or false.
Vertebrates that practice internal fertilization employ three strategies for embryonic and fetal development. In one strategy, the female retains the young which develop and obtain nourishment from the female's blood. What is this called?
A. ovoviviparity B. oviparity C. protogyny D. protandry E. viviparity