Unit 2 Ecology Ch 18.2 And 19.2 Test Question Preview (ID: 15724)


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An autotroph gets its energy from ____________
a) other living organisms
b) dead organisms
c) the Sun
d) decomposers

Water, nitrogen, and carbon are _______ within an ecosystem.
a) lost
b) always increasing
c) recycled
d) always decreasing

As energy is transferred up the energy pyramid, the amount of energy ________.
a) increases
b) decreases
c) remains the same
d)

In an ecosystem, a rabbit and mouse get their energy from grass, a snake gets its energy from a rabbit and mouse; and a hawk gets its energy from a snake. What trophic level is hawk?
a) 1
b) 2
c) 3
d) 4

In an ecosystem, a rabbit and mouse get their energy from grass, a snake gets its energy from a rabbit and mouse; and a hawk gets its energy from a snake. What trophic level is grass?
a) 1
b) 2
c) 3
d) 4

A ________ gets its energy from a dead animal.
a) Producer
b) Decomposer
c) Omnivore
d) Scavanger

A(n) _________ is an organism that gets its energy from heterotrophs only.
a) carnivore
b) herbivore
c) onmivore
d) producer

A _______ helps to break down (recycle) organisms in an ecosystem.
a) scavanger
b) herbivore
c) decomposer
d) parasite

Using fig. 4, level c is the ________ trophic leve.
a) 1
b) 2
c) 3
d) 4

_______ are organisms that eat both plants and animals.
a) herbivores
b) omnivores
c) carnivores
d) producers

Using fig. 4, the arrows reflect the energy that is used from one level to the next on an energy pyramid. This used energy is around ______ % for each level.
a) 5
b) 10
c) 20
d) 50

Using fig. 3, which organism is considered to be an autotroph?
a) sparrow
b) toad
c) garter snake
d) grass

Using fig. 3, which is herbivore?
a) Deer
b) Bird
c) Coyote
d) Bobcat

Using fig. 3, a bobcat would be at trophic level _____.
a) 1
b) 2
c) 3
d) 4

Using fig. 2, which is a primary consumer?
a) hawk
b) spider
c) mouse
d) toad

Using fig. 2, which organism would receive the most energy on an energy pyramid?
a) rabbit
b) hawk
c) garter snake
d) spider

Using fig. 1, what organism would be most impacted if the deer population were to decrease drastically?
a) mountain lion
b) hawk
c) owl
d) rabbit

Using fig. 1, what does the frog rely on for energy?
a) producer
b) secondary consumer
c) primary consumer
d) tertiary consumer

Decomposers get most of their energy from decaying organisms. Most of this is in the form of ________
a) primary consumers
b) secondary consumers
c) tertiary consumers
d) producers

Using fig. 1, which is a tertiary consumer?
a) frog
b) owl
c) grass
d) snake

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