BIO120H1 Study Guide - Midterm Guide: Intertropical Convergence Zone, Temperate Deciduous Forest, Bumblebee
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BIO120 Sample Test 2 Questions – Professor Thomson’s Lectures
1. Which biome is best characterized as having a climate of hot, dry summers and cool, rainy
winters?
a. Tropical deciduous forest
b. Temperate deciduous forest
c. Boreal forest
d. Chaparral
2. Which of the following pairs of characteristics of organisms is LEAST likely to be related to each
other by a tradeoff (or negative correlation)?
a. Size and SA/V
b. Photosynthesis rate and water use
c. Fecundity and longevity
d. Seed size and dispersal distance
3. A photo in The Struggle For Existence shows that bumble bee thoraxes are often hotter than their
abdomens. A proximate explanation for this would be that the source of heat is the flight muscles,
which are located in the thorax. Which of the following would be the BEST example of an
ultimate explanation?
a. Their circulatory system is too weak to redistribute heat from the thorax to the abdomen.
b. In this situation, it is more important that bees be able to fly to defend the nest; the abdomen is
for food storage and reproduction, which have lower priority.
c. The picture was taken on a cold morning, and the abdomen acts like an extremity; in a warmer
environment, the thorax and abdomen would have more similar temperatures.
d. The thorax stays warmer because it has thicker insulating fur.
4. Which of the following is most responsible for the reddish, nutrient-poor, lateritic qualities of soils
found in many tropical rainforest areas?
a. Loess
b. Leaching
c. Alluvium
d. Humus
5. What typically is the air in the intertropical convergence zone (ITCZ)?
a. Sinking
b. Rather stationary
c. Rising and sinking at equal rate
d. Rising
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