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Which statement about the flow of energy in this pyramid is most accurate?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Which of the following is a decomposer in a desert ecosystem?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Which of the following best identifies the relationship between fleas and dogs?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Which of the following best describes the influence carrying capacity has on the size of a population?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Assuming all other variables are constant, what happens to a population when immigration exceeds emigration?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
How may a drought most likely affect an environment?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Which of the following best describes the influence of emigration on the size of a population?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
Which of the following is a producer?
bacteria
Fleas are parasites, and dogs are their hosts.
As energy flows from the bottom towards the top, much of the energy is lost as heat.
The population increases.
The carrying capacity limits the size of a population.
In general, as emigration from an area increases, the population of the area decreases.
vegetation
The population of vegetation decrease & decreases in the populations of dragonflies, frogs & snakes.
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