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Savvas 7th Grade Ecosystems and Biomes Test cloned 2/15/2022

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Last updated over 2 years ago
23 questions
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Question 1
1.

An organism that can make its own food is called a

Question 2
2.

The nonliving parts of an ecosystem are called

Question 3
3.

The number of different species in an area is referred to as its

Question 4
4.

A group of land ecosystems with similar climates and organisms is called a(n)

Question 5
5.

Ponds and rivers are two types of

Question 6
6.

The many overlapping food chains in an ecosystem make up a(n)

Question 7
7.

Which biome is extremely cold and dry?

Question 8
8.

If all members of a species disappear from Earth, the species is said to be

Question 9
9.

The mating of California condors in zoos is an example of

Question 10
10.

A diagram that shows how much energy is available at each feeding level in an ecosystem is a(n)

Question 11
11.
Bacteria and fungi are known as _______ because they break down the remains of organisms.
Question 12
12.
Water vapor turns into droplets of liquid water in the process of_______
Question 13
13.
Certain bacteria change nitrogen gas into a usable form in a process called_______
Question 14
14.
Setting aside a marsh as a wildlife refuge is an example of the _______ approach to protecting biodiversity.
Question 15
15.
The part of an ecosystem where an organism lives and feeds is called the organism’s_______
Question 16
16.

The deciduous forest biome is typically populated by many grasses, along with a few shrubs and trees.

Question 17
17.

Organisms that capture the energy of sunlight to make food are called producers.

Question 18
18.

Producers release the gas oxygen as a product of photosynthesis.

Question 19
19.

Oak, maple, and beech trees, which lose their leaves each year, are typically found in a boreal forest.

Question 20
20.

The arrow in a food chain represents the energy.

Question 21
21.

Describe two roles bacteria play in the nitrogen cycle.

Question 22
22.

Explain why decomposers are essential to life on Earth.

Question 23
23.

Explain the difference between a population and a community.