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Ecosystems Review
Test Description: SC PASS Review
Instructions: Answer all questions to get your test result.
1) What is the smallest living part of a living thing?
A
nutrient
B
nucleus
C
cell
D
vacuole
2) Through what part of a cell do materials enter and waste products leave?
A
cell membrane
B
chloroplast
C
nucleus
D
cytoplasm
3) What is the function of a vacuole?
A
it gathers sunlight for photosynthesis
B
it surrounds a cell and holds it together
C
it contains the cell's nucleus
D
it stores food, water, and other materials
4) How are plant cells different from animal cells?
A
plant cells have more cytoplasm
B
plant cells have cell membranes
C
plant cells have chloroplasts
D
plant cells have fewer parts
5) Which is these is the most complete description of an ecosystem's parts?
A
all the plants and animals living in an area
B
all the living and nonliving things in an area
C
all rocks, soil, and air in an area
D
all the sources of water in an area
6) Many microorganisms live in soil. What do all the microorganisms of the same species living in an area's soil make up?
A
a habitat
B
an ecosystem
C
a community
D
a population
7) Which of these is an example of an abiotic factor in a forest ecosystem?
A
squirrel
B
moss
C
sunlight
D
tree
8) What do all of the populations in an area make up?
A
a community
B
a habitat
C
an ecosystem
D
a niche
9) Which of these is the best example of an interaction between a biotic factor and an abiotic factor in an ecosystem?
A
an elephant uproots a tree
B
sunlight warms a rock
C
a wolf drinks from a stream
D
a bird feeds its young
10) Where would you most likely find a salt marsh?
A
near a grassland
B
beside a large lake
C
on the ocean floor
D
at the edge of an estuary
11) How are ecosystems in the deep sea different from ecosystems in shallow ocean water?
A
algae are more common in deep sea ecosystem
B
deep sea ecosystems usually have warmer water
C
water pressure is lower in deep sea ecosystems
D
no sunlight reaches deep sea ecosystems
12) Which ecosystem is most likely to have fertile soil for growing crops?
A
pond
B
salt marsh
C
grassland
D
estuary
*select an answer for all questions
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