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Ecology And Natural Selection
Test Description: Review of terms and concepts associated with ecology and natural selection.
Instructions: Answer all questions to get your test result.
1) What is the most important role of earthworms, pill bugs, and bacteria in an ecosystem?
A
to withstand extreme temperature and drought conditions
B
to convert the Sun's energy into stored energy
C
to serve as a major food source for large animals
D
to return dead plant and animal nutrients to the soil
2) If an environment where a population of lizards lives becomes much hotter and drier, how might the lizard population in this area continue to survive?
A
a few lizards will decide to change their sleeping and hunting habits and become nocturnal
B
the entire lizard population will migrate to a cooler and wetter habitat
C
some members of the lizard population will choose to store extra water in the fat in their tails
D
those lizards that can survive on less water will survive and pass on that trait to their offspring
3) A lioness has three cubs and one is smaller than the other two and does not get as much to eat during feeding. Why are the larger more likely to reproduce than the smaller one?
A
their mother will ensure they reproduce
B
they will have more mates to choose from
C
their size is similar to other lions within the pride
D
they are more likely to survive
4) What type of diagram shows the available energy at each feeding level in an environment?
A
a food chain
B
an energy pyramid
C
a food web
D
a predator/prey diagram
5) Animals that feed on small bits of decaying organisms are called ____________.
A
carnivores
B
omnivores
C
detrivores
D
herbivores
6) What abiotic factor is necessary for reptiles to regulate body heat?
A
sunlight
B
precipitation
C
food
D
carbon dioxide
7) A wildfire burns away all of the grass in an ecosystem. Which of the following explains the effects this will have on the other organisms within the ecosystem?
A
only grass eaters will be affected because their food source is gone
B
only the grass will be affected by the wildfire
C
all organisms at each energy level within the ecosystem will be affected
D
only grass eaters and predators that eat these animals will be affected
8) Due to changes in resources, a typically rainy ecosystem becomes a dry, sunny environment. How will the plant and animal population change?
A
any organisms in the environment during the change will move or die
B
organisms that adapt to the new weather will thrive
C
all organisms will adapt ways to protect themselves from heat
D
all organisms will remain the same
9) Which of the following is a biotic factor?
A
water
B
sunlight
C
worms
D
climate
10) Which of the following is not a producer?
A
pine tree
B
tulip
C
honey bee
D
grass
*select an answer for all questions
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