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Ecosystems And Biomes
Test Description: Ecology and Ecosystems
Instructions: Answer all questions to get your test result.
1) Which would you use to describe a collection of sea anemones, sea stars, barnacles, and other organisms that live in a tide pool?
A
a community
B
a population
C
a limiting factor
D
an abiotic factor
2) Because green plants need moisture, light and soil, what do they depend on?
A
shelter
B
biotic factors
C
populations
D
abiotic factors
3) Which group is a population?
A
plants and animals in a meadow
B
Mojave rattlesnakes in the Mojave Desert
C
fish and whales in the Pacific Ocean
D
species of birds living in a rain forest
4) What is the main reason different biomes support different plant and animal communities?
A
They have different climates
B
They have different biotic factors
C
They have different niches
D
They have different soil types
5) In which type of biome would you find the greatest number of species of plants and animals?
A
desert
B
rain forest
C
chaparral
D
tundra
6) Which of these is a biotic factor?
A
sunlight
B
temperature
C
rainfall
D
insect
7) Which abiotic factor provides energy for nearly all life on Earth?
A
water
B
sunlight
C
air
D
soil
8) What helps determine the number of individuals that can survive in an area?
A
habitat
B
biome
C
limiting factors
D
ecosystem
9) Which is an example of a population?
A
all the plants and animals in a wetland
B
the air, sunlight, and soil in a wetland
C
all the trees, soil, and water in a forest
D
all the white-tailed deer in a forest
10) What biome is located closest to the north and south poles?
A
temperate deciduous rain forest
B
rainforest
C
tundra
D
taiga
11) Where is the tropical rainforest biome found?
A
antarctic circle
B
tropic of cancer
C
Arctic Circle
D
equator
12) What biome covers most of northern Africa?
A
temperate rain forest
B
temperate deciduous forest
C
tundra
D
desert
13) Which describes a vegetarian?
A
herbivore
B
carnivore
C
scavenger
D
omnivore
14) What might happen if Earth had no decomposers?
A
Consumers would have nothing left to eat
B
Producers would run out of energy
C
Scavengers would not be able to find food
D
Nutrients to make new organisms would be limited
15) Why do the layers in an energy pyramid get smaller toward the top?
A
Each layer has less sunlight than the layer below
B
There are few herbivores than the layer below
C
Each layer has less energy than the layer below
D
There are more carnivores in the layer below
16) What are organisms in the first layer of the energy pyramid called
A
consumers
B
omnivores
C
producers
D
carnivores
17) Producers are different from consumers because only producers can do what?
A
make their own food
B
digest the nutrients in other organisms
C
swim in the deep water
D
contribute to the marine food web
18) Which is an organism that can directly convert energy from the Sun into food?
A
herbivores
B
decomposers
C
consumers
D
producers
19) Which organism might compete with the mouse for seeds?
A
lion
B
hawk
C
sparrow
D
fox
20) Which term describes organizes such as cows, horses, and goats?
A
carnivores
B
herbivores
C
omnivores
D
producers
*select an answer for all questions
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