Population Factors And Symbiotic Relationships Question Preview (ID: 61024)


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If wolves prey on deer for food, what will most likely happen to the deer population if wolves are removed from an area where deer live?
a) The population of deer will increase.
b) The population of deer will decrease.
c) The population of deer will remain the same.
d) The population of deer will become extinct.

Which best determines the number of wolves that can live in an area?
a) the amount of snow in the area each year
b) the number of birds that live in the area
c) the amount of food available in the area
d) the number of trees in the area

Which best explains the role of bacteria in an ecosystem?
a) They release energy from the decomposition of atmospheric gases.
b) They absorb energy from the synthesis of inorganic compounds.
c) They convert carbon dioxide and water into simple carbohydrates.
d) They break down organic matter into necessary nutrient components.

An environment can support only as many organisms as the available energy, minerals, and oxygen will allow. Which term is best described by this statement
a) Biological Feedback
b) Carrying Capacity
c) Homeostatic Control
d) Biological Diversity

After a rabbit population reaches the carrying capacity of its habitat, the population of rabbits will most likely
a) Decrease only
b) Increase only
c) Alternately increase and decrease
d) Remain Unchanged

In most habitats, the removal of predators will have the most immediate impact on a population of
a) Producers
b) Decomposers
c) Herbivores
d) Microbes

Two species of animals with a similar appearance live in the same habitat but do not compete for food. This is because they most likely
a) reproduce at different times of the year.
b) are the same size.
c) occupy different ecological niches.
d) are active at night.

Which is an example of parasitism?
a) Cat and Mouse
b) Catterpillar and Butterfly
c) Human and Tapeworm
d) Tadpole and Frog

Which of these organisms is a producer in a marine ecosystem?
a) Fish
b) Algae
c) Worm
d) Seagull

A niche is an organisms _______ in the community or ecosystem
a) Habitat
b) Consumer
c) Role
d) Class

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