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Science Ecology Test

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Last updated almost 4 years ago
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Question 1
1.

Which of the following is a biotic factor in the prairie ecosystem?

Question 2
2.

The place where an organism lives and that provides the things the organism needs is called its

Question 3
3.

The smallest unit of ecological organization is a single

Question 4
4.

Which of the following is an example of a population?

Question 5
5.

The largest population that an environment can support is called its

Question 6
6.

An organism’s particular role in its habitat, or how it makes its living, is called its

Question 7
7.

The behaviors and physical characteristics of species that allow them to live successfully in their environment are called

Question 8
8.

The struggle between organisms to survive in a habitat with limited resources is called

Question 9
9.

When a jellyfish paralyzes a tiny fish with its poisonous tentacles, the fish is the

Question 10
10.

A close relationship between two species that benefits at least one of the species is called

Question 11
11.

An early winter frost preventing further growth in a tomato garden is an example of

Question 12
12.

All of the following are examples of limiting factors EXCEPT

Question 13
13.

The nonliving parts of an ecosystem are called

Question 14
14.

Which of the following describes an interaction in which one organism kills and eats another?

Question 15
15.

All the different populations that live together in an area make up a(an)

Question 16
16.

The study of how things interact with each other and with their environment is called

Question 17
17.

When a flea is living on a dog, the dog is the

Question 18
18.

Mutualism, commensalism, and parasitism are the three types of

Question 19
19.

A hawk building its nest on an arm of a saguaro cactus is an example of

Question 20
20.

Consumers that eat both plants and animals are called

Question 21
21.

An organism that can make its own food is called a

Question 22
22.

Vultures, which feed on the bodies of dead organisms, are

Question 23
23.

Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.

Both species benefit in the type of symbiosis called mutualism.

Question 24
24.

Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.

A tapeworm living inside a wolf’s body is a predator.

Question 25
25.

Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.

All of the members of a community belong to the same species.

Question 26
26.

Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.

Bees and flowers are biotic factors in an ecosystem.

Question 27
27.

Indicate whether the statement is true or false. If false, change the underlined word or phrase to make the statement true.

Population size generally increases if the birth rate is greater than the death rate.

Question 28
28.

Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences. :

Inside a human’s intestine live bacteria that make vitamin K;

Question 29
29.

Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences.

A human picks up bacteria on his or her hands. The bacteria do not cause disease but do feed on the human’s dead skin cells;

Question 30
30.

Classify these examples of symbiosis by type and explain your choice. Use details about each organism and use complete sentences.

A tick attaches itself to a human and feeds on the human’s blood.

Question 31
31.

Which biome is described below?
Warm summers, cold winters; receives at least 50 cm of precipitation per year; trees shed their leaves and grow new ones each year

Question 32
32.

Which biome is described below?
Warm, rainy summers; very cold winters with heavy snow; trees produce cones with seeds that are eaten by many animals

Question 33
33.

Which biome is described below?
Extremely cold winters, warmer summers; windy; very dry; no trees, only low-growing plants

Question 34
34.

Which biome is described below?
Receives between 25 and 75 centimeters of rain each year; populated by grasses and many large herbivores

Question 35
35.

This is the largest biome in the world, covering 70% of the earth.

Question 36
36.

What biome has the greatest biodiversity?

Question 37
37.

Which biome is described below?
Hot in daytime, cool or cold at night; very dry; organisms are adapted to extreme temperatures and dry conditions

Question 38
38.

One characteristic feature of tundra is that only the surface thaws in the summer and refreezes in the winter, leaving a layer of permanently frozen subsoil.  This characteristic is known as

Question 39
39.

Which biome is charaterized by very low temperatures, little precipitation, and permafrost?

Question 40
40.

In which biome would you find most likely find many animals with white fur?

Question 41
41.

Which of the following biomes receives the most precipitation?