What happens to air as it is warmed?
a. It rises.
b. It sinks.
c. It moves at a slower speed.
d. It moves horizontally.
e. It does none of these
A
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Large bodies of water maintain relatively constant temperatures compared to terrestrial locations. Why is this so, and how is this feature of water important for life?
What will be an ideal response?
Cuvier, an anatomist and paleontologist, proposed
that a. all present-day organisms have descended, with adaptations, from one—or possibly a few— original organisms. b. the earth’s history has been marked by several periods when destruction of populations was widespread and that, after each such period, the earth was repopulated. c. evolutionary changes in organisms are caused by use and disuse. d. although evolution is responsible for all the changes that happen to species, one center of creation resulted in the original members of each species. e. none of these are true.
Connective tissue serves to support and bind other tissues. Which of the following is NOT an example of connective tissue?
A. Bone B. Fat C. Blood D. Cartilage E. Neurons
The process by which an embryo undergoes rapid changes in form and shape is called
A) cleavage. B) fertilization. C) morphogenesis. D) implantation. E) differentiation.