What situation relates to the reason why hot-air balloons are able to fly?
A) Precipitation falls on the leeward side of a mountain.
B) Water droplets can freeze inside clouds.
C) Very little rain falls at 30° north and south of the equator.
D) The tops of hills are warmer than the valleys below.
D
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Which one of the following insect organ systems has placed the greatest limitation on their body size?
A. nervous system B. digestive system C. respiratory system D. reproductive system E. excretory system Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about insects? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Normally, when cellular damage has occurred, a fully functional p53 gene will do which of the following?
a. Divide like normal. b. Divide slower creating fewer cells. c. Pause in the cell cycle until the damage is repaired. d. Divide faster creating more cells.
Four of the five species listed below are those in
which the females cluster and the males fight. Select the exception. a. dogs b. lions c. elk d. bison e. bighorn sheep
What structure do lobsters use for gas exchange?
A) gills B) lungs C) skin D) tracheae