Ecosystems

A _____ is an organism that eats other organisms for energy in an ecosystem.

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5.12AC

A highway being built through a ​ (a)   may lead to a ​ (b)   in the animal ​ (c)   in the area.

• forest
• decrease
• populations
• increase
• city

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5.12AC

A _____ is an area where an organism lives and gets its resources for survival.

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5.12AC

You are on a field trip to the zoo. Which observation would describe elephants interacting with the biotic elements of their ecosystem?

• Elephants walking across their habitat.

• Elephants drinking water using their trunks.

• Elephants eating leaves off of a tree.

• Elephants tend to live in warm areas.

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5.12AC

As you visit the hippo area at the zoo, which of your observations would describe how hippos interact with the biotic parts of their environment?

• The hippos sliding into their pond and climbing onto a flat rock.

• The hippos eating a watermelon that is being fed to them by a zoo worker.

• The hippose using the water as their restroom.

• The hippos splashing water against the window.

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5.12AC

Identify the abiotic (non-living) factors in this ecosystem.

Answer explanation

The abiotic elements in this ecosystem were: (1) the air, (2) the sun, and (3) water.

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5.12AC

Identify the biotic (living) factors in this ecosystem.

Answer explanation

There are SEVERAL biotic elements in this ecosystem, some of which are: the grass, turtles, fish, bugs, deer, etc.

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5.12AC

Identify one decomposing element that has its own ecosystem.

Answer explanation

This decomposing log is a home to many organisms: plants, fungi, mushrooms, insects, worms, etc.

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5.12AC

An ​ (a)   are the ​ (b)   among ​ (c)   and ​ (d)   things in an ​ (e)   .

• ecosystem
• interactions
• living
• non-living
• environment

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5.12AC

Identify the biotic and abiotic factors in this artic ecosystem.

a

b

c

d

seal = abiotic

water = abiotic

ice = biotic

polar bear = biotic

ice = abiotic

seal = biotic

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5.12AC