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Science Semester Test Review
Test Description: Review for spring semester test
Instructions: Answer all questions to get your test result.
1) Which of the following is a biotic factor in the prairie ecosystem?
A
grass
B
sunlight
C
soil
D
water
2) Consumers that can eat both plants and animals are called
A
scavengers
B
omnivores
C
herbivores
D
carnivores
3) According to the Food Guide Pyramid, which group should be eaten in very limited amounts?
A
milk, yogurt, and cheese
B
vegetables
C
bread, cereal, rice and pasta
D
fats, oils and sweets
4) Needed substances are carried to the body cells by
A
blood
B
food
C
enzymes
D
water
5) The place where an organism lives that provides the things the organism needs is called its
A
species
B
community
C
population
D
habitat
6) If a kestrel eats a mouse that eats grass, the kestrel is a
A
first-level consumer
B
second-level consumer
C
decomposer
D
producer
7) Which of the following is NOT a function of the digestive system?
A
obtaining oxygen
B
breaking down food into molecules that the body can use
C
absorbing food molecules into the blood
D
eliminating undigested wastes from the body
8) The function of the atria is to
A
deliver oxygen to body tissues
B
pump blood to the body
C
pump blood to the lungs
D
receive blood that comes into the heart
9) The smallest unit of ecological organization is a single
A
community
B
ecosystem
C
organism
D
population
10) The many overlapping food chains in an ecosystem make up a(n)
A
energy pyramid
B
food web
C
feeding level
D
niche
11) What substance must be present in the stomach for pepsin to work best?
A
water
B
hydrochloric acid
C
mucus
D
saliva
12) Blood vessels that carry blood away from the heart are called
A
lymphatic vessels
B
arteries
C
veins
D
cappilaries
13) Which of the following is an example of a population?
A
the bushes and grass in a park
B
the cats and dogs in your neighborhood
C
the rocks in a rock collection
D
the gray wolves in a forest
14) A diagram that shows the amount of energy that moves from one feeding level to another in a food web is called
A
food chain
B
energy pyramid
C
niche
D
ecosystem
15) The Food Guide Pyramid indicates how many servings from each food group should be eaten
A
each month
B
at each meal
C
each day
D
each week
16) In which vessels are materials exchanged between the blood and the body cells
A
lymphatic vessels
B
arteries
C
veins
D
capillaries
17) Counting the number of organisms in a small area and multiplying to estimate the number in a larger area is called
A
direct observation
B
population density
C
mark and recapture
D
sampling
18) In which process do molecules of liquid water absorb energy and change into the gas state?
A
precipitation
B
recycling
C
evaporation
D
condensation
19) A calorie is a unit used to measure
A
energy
B
vitamins
C
minerals
D
temerature
20) What causes blood pressure
A
the force with which the ventricles contract
B
the rate at which blood flows through the heart
C
the speed at which oxygen is returned to the blood in the lungs
D
the strength of the muscles in the walls of the capillaries
*select an answer for all questions
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