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Midterm Review 2018 B
Test Description: Life Science
Instructions: Answer all questions to get your test result.
1) The lysosome is to the cell as the _______ is to a factory.
A
janitor
B
the security fence
C
the boss
D
the factory floor
2) What term refers to the movement of molecules from an area of higher concentration to an area of lower concentration?
A
concentration
B
collision
C
diffusion
D
active transport
3) Which term refers to the diffusion of water molecules through a selectively permeable membrane?
A
active tansport
B
engulfing
C
passive transport
D
osmosis
4) Which term refers to the movement of materials through a cell membrane without using the cell’s energy?
A
active transport
B
passive transport
C
concentration
D
collision
5) consumers that eat both plants and animals are called
A
carnivores
B
scavengers
C
herbivores
D
omnivores
6) The many overlapping food chains in an ecosystem make up a(n)
A
niche
B
feeding level
C
energy pyramid
D
a food web
7) All plants are
A
eukaryotes
B
prokaryotes
C
heterotrophs
D
unicellular
8) The smallest unit of ecological organization is a single
A
organism
B
ecosystem
C
community
D
population
9) The largest population that an environment can support is called its
A
birth rate
B
limiting factor
C
carrying capacity
D
death rate
10) Which organism is likely to be at the beginning of a food chain for a pond ecosystem?
A
paramecium
B
freshwater shrimp
C
green algae
D
sunfish
11) We get energy from food. The energy in the food first comes from
A
the sun's energy trapped in food by producers
B
the vitamins and minerals added by food manufacturers
C
nutrients in the soil left by decomposers
D
the fertilizers used by farmers to make plants grow faster
12) Which of the following is NOT used to make glucose in photosynthesis?
A
O2
B
H2O
C
CO2
D
light energy
13) The equation: CO2 + H2O + light energy ------- C6H12O6 + O2 is
A
exocytosis
B
photosynthesis
C
fermentation
D
cellular respiration
14) _________ trees produce seeds in cones and do NOT lose their leaves in the fall.
A
Biotic
B
Deciduous
C
Coniferous
D
Tropical
15) When a flea is living on a dog, the dog is the
A
host
B
predator
C
parasite
D
prey
16) Parasitism occurs when one organism benefits from an interaction and the other organism:
A
always dies
B
is negatively affected or killed
C
is not affected
D
also benefits
17) Grass that gains energy from the sun is an example of a
A
parasite
B
consumer
C
producer
D
decomposer
18) A major factor used to classify biomes is
A
the surface area of the region
B
the sources of water present
C
the climate in the region
D
the number of people that live there
19) Which organelle is the control center of a cell?
A
chloroplast
B
nucleus
C
mitochondria
D
ribosome
20) Animals that eat a variety of meats, fruits, and vegetables are
A
carnivores
B
herbivores
C
producers
D
omnivores
*select an answer for all questions
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