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