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