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Ecosystems
Test Description: 5th grade SC Science PASS test review
Instructions: Answer all questions to get your test result.
1) Which is a complete food chain?
A
Rabbit- plant- fox- sun
B
Sun- plant- rabbit- wolf
C
Wolf- plant- rabbit
D
Plant- rabbit- wolf
2) What is an organism that lives in or on another organism and benefits while the organism other organism is hurt?
A
symbiosis
B
mutualism
C
competition
D
parasite
3) Which of the following does a plant cell have that an animal cell does not?
A
cell wall
B
nucleus
C
vacule
D
cell membrane
4) Which ecosystem contains sparse vegetation and mostly sand and rocks?
A
tundra
B
grassland
C
forest
D
desert
5) If there is a deer population living in the woods and there is a diseases that kills many of the deer, what will happen?
A
The plant population will decrease and the wolf population will decrease.
B
The plant population will increase and the wolf population will increase.
C
The plant population will increase and the wolf population will decrease.
D
The plant population will decrease and the wolf population will increase.
6) Which of the following best describes the organisms within an ecosystem that belong to the same species?
A
food web
B
consumers
C
a population
D
a community
7) What animal might compete for the same food as a snake in the desert?
A
cayote
B
rabbit
C
cactus
D
mouse
8) What is a biotic factor in the forest?
A
dirt
B
mushroom
C
rock
D
sun
9) What is an abiotic factor in the forest?
A
grass
B
deer
C
stream
D
tree
10) The vacuole of a cell
A
creates the food.
B
is the brain of the cell.
C
allows things in and out of the cell.
D
stores excess food and water.
11) Why can a prairie support more organisms than a desert?
A
A praire ecosystem has fewer producers, which means it can support more carnivores.
B
A prairie ecosystem has more organisms that are struggling to get their share of resources.
C
A prairie has more producers so it can support more herbivores, which support more carnivores.
D
A prairie ecosystem varies in temperature, which means it can support more populations.
12) What is not an example of a decomposer?
A
bacteria
B
a squirrel
C
a worm
D
a mushroom
13) Which is the best prediction of what might happen if the organism at the center of a food web completely disappeared and the animals that depended on it were not able to find an alternative food source?
A
The animals would die out.
B
The animals would become producers.
C
The animals would become decomposers.
D
The animals would learn to make their own food.
*select an answer for all questions
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