This document appears to be a practice exam for a biology course (BIO-101) containing 10 multiple choice questions covering various biology topics including imprinting in birds, plant succession models, population age structure diagrams, population growth rates, carrying capacity, sexual selection, characteristics of tundra biomes, recycling in the biosphere, communication between animals, and circadian rhythms. The questions are followed by feedback upon selecting an answer.
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Question 1
Imprinting helps birds
Select one:
a. perform the proper courtship ritual.
b. defend their territory.
c. recognize a member of their own species.
d. form a fixed action pattern.
e. build a better nest.
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Question 2
The theory that plants cannot grow on a particular area until the soil has been developed
enough by an earlier community is the
Select one:
2. a. climax-pattern model.
b. facilitation model.
c. inhibition model.
d. tolerance model.
e. soil development model.
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Question 3
Age structure diagrams with a broad base suggest that
Select one:
a. the population will continue to grow for some time.
b. environmental resistance is not at work.
c. the biotic potential must be larger than usual.
d. the individuals must be larger than usual.
e. there are many older individuals in a population.
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Question 4
3. In a population of 150 organisms over a six month period there are 75 births and 30
deaths. Calculate the growth rate for those six months
Select one:
a. 0.7
b. 0.5
c. 0.2
d. 0.3
e. 0.75
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Question 5
The maximum population that the environment can support for an indefinite period of time
is called the
Select one:
a. biotic potential.
b. environmental resistance.
c. carrying capacity.
d. replacement reproduction.
e. demographic transition.
4. Feedback
Question 6
An increase in fitness—the survival of more offspring—that occurs due to competition
among males and mate choice by females is called
Select one:
a. altruistic behavior.
b. selfish behavior.
c. natural selection.
d. sociobiology.
e. sexual selection.
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Question 7
Tundra is divided into alpine tundra at the top of mountains and arctic tundra found close
to the North Pole. These two biomes have similar plants and animals even though they
can be located in vastly different regions of the world. What causes these two biomes to
be similar?
Select one:
a. Both are found close to coniferous forests.
5. b. One is cold and dry because it is at a high latitude and the other is cold and dry
because it is at a high altitude.
c. Both are located in areas of intense sunshine.
d. One grows mostly grasses because the soil is poor and the other grows mostly grasses
because the soil is frozen.
e. Both have large grazing herds that keep the grasses clipped short.
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Question 8
In the biosphere, which of the following is NOT constantly recycled?
Select one:
a. carbon
b. nitrogen
c. water
d. energy
e. phosphorus
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Question 9
6. ____ is defined as the transmission of a signal from one animal that influences the
behavior of a receiving animal.
Select one:
a. Imprinting
b. Dominance hierarchy
c. Communication
d. Circadian rhythm
e. Operant conditioning
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Question 10
