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Science Semester Test Review 3
Test Description: Continued spring semester test review
Instructions: Answer all questions to get your test result.
1) The Escherichia coli that live in your intestine and help break down food are an example of which type of interaction?
A
mutualism
B
competition
C
predation
D
parasitism
2) The nonliving parts of an ecosystem are called
A
populations
B
biotic factors
C
organisms
D
abiotic factors
3) To carry out photosynthesis, algae and plants use the abiotic factors, sunlight, carbon dioxide, and
A
soil
B
salt
C
water
D
bacteria
4) The first organism in a food chain is always a
A
producer
B
herbivore
C
carnivore
D
consumer
5) What do producers release as a result of photosynthesis?
A
oxygen
B
carbon dioxide
C
hydrogen
D
nitrogen
6) The very slow movement of the continents is called
A
dispersal
B
continental drift
C
distribution
D
biogeography
7) What substance in the mouth contains an enzyme that begins chemical digestion?
A
mucus
B
pepsin
C
fiber
D
saliva
8) What substance coats and protects the inside of the stomach?
A
pepsin
B
mucus
C
saliva
D
bile
9) The process in which your body breaks down food into small nutrient molecules is called
A
digestion
B
absorption
C
peristalsis
D
enzyme
10) Which nutrient is needed in order for all body processes to take place?
A
carbohydrates
B
fats
C
water
D
vitamins
11) Atherosclerosis is a condition in which
A
artery walls thicken as the result of a buildup of fatty materials
B
muschles in capillary walls lose their ability to contract
C
veins experience a buildup of fatty material
D
capillaries widen and release too much fluid
12) Hypertension is a condition in which
A
fatty deposits build up on artery walls
B
blood pressure is consistently lower than normal
C
some of the heart muscle dies
D
blood pressure is consistently higher than normal
13) The function of white blood cells is to
A
increase blood pressure
B
fight disease
C
carry carbon dioxide
D
carry wastes away from body cells
*select an answer for all questions
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