When body temperature is too high, which of the following occurs?
A) Hypothalamus ceases to function.
B) Blood vessels in the skin dilate.
C) Capillaries contract.
D) Skeletal muscles contract.
Answer: B
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Which of the following describes the focus of Mendel’s work in genetics?
a. inherited traits that appeared to be a blending of two genes b. inherited traits with distinct, distinguishable patterns c. inherited traits that were no longer recessive d. inherited traits with only minor differences
Which of the following junctions influences
the passage of ions and small molecules between cells? a. gap b. adhering c. loose d. tight e. gated
Endocytosis includes
What will be an ideal response?
Zebrafish (Daniorerio) are especially useful in the study of early development because their embryos ______________
(a) are exceptionally large. (b) develop slowly. (c) are transparent. (d) are pigmented.