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Unit 4 Science
Test Description: Ecosystems
Instructions: Answer all questions to get your test result.
1) Which type of ecosystem is the ground beneath the surface frozen all year?qq
A
desert
B
wetland
C
prairie
D
tundra
2) What kind of fossil preserves the hand and soft parts of an animal?
A
a cast fossil
B
a fossil from a tar pit
C
a fossil in amber
D
a trace fossil
3) Which of the following is a producer?
A
grass
B
hawk
C
dog
D
deer
4) What is a decomposer?
A
a consumer that gets energy by eating only plants
B
a dead animal or plant
C
an organism such as an earthworm that eats the remains of an animal.
D
the waste of dead animals and plants
5) What is most likely to happen if most of a population of animals dies of disease?
A
The decomposers will die.
B
The producers will also get the disease.
C
The food web will change.
D
The food web will stop.
6) What is passed along in a food chaine?
A
air
B
heribivores
C
energy
D
ecosystem
7) What is the main source of energy in an ecosystem?
A
water
B
sunlight
C
plants
D
predators
8) A group of organisms of the same kind living in an area is a(n)
A
community
B
habitat
C
ecosystem
D
population
9) What makes up an ecosystem?
A
living and nonliving things
B
populations and communities
C
sunlight and water
D
decomposers and producers
10) Which happens first?
A
An animal dies and sinks to the bottom of a lake.
B
The soft parts of an animal decay.
C
Sand, mud and sediments cover the animal.
D
Sediments harden into rock perserving an animal's shape.
11) Which of the following is a correct food chain?
A
deer...ferns...mountian lion....sunlight
B
mountain lion....deer....ferns...sunlight
C
water....ferns....deer... mountain lion
D
sunlight...ferns...deer... mountain lion
12) How is a food web different from a food chain?
A
A food web is many overlapping paths of energy through an ecosystem.
B
Food webs have only consumers and decomposers.
C
Food webs most energy comes from carnivores.
D
A food web is only one path of energy through an ecosystem.
13) Which of the following is a carnivore?
A
deer
B
snake
C
groundhog
D
butterfly
14) Which of the following is a population?
A
decomposers in an environment
B
all the zebras that live near a watering hole.
C
all the fossils found in a square mile radius
D
ll the nonliving and living things in the savannah
15) What is a paleontologist?
A
A scientist who studies the populations of an ecosystem.
B
A member of a spcies that live in an area
C
a scientist who studies fossils to learn about extinct organisms
D
A scientist who studies food webs and food chains.
*select an answer for all questions
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