Science Semester Test Review 3 Question Preview (ID: 42671)
Continued Spring Semester Test Review.
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The Escherichia coli that live in your intestine and help break down food are an example of which type of interaction?
a) competition
b) mutualism
c) parasitism
d) predation
The nonliving parts of an ecosystem are called
a) populations
b) organisms
c) biotic factors
d) abiotic factors
To carry out photosynthesis, algae and plants use the abiotic factors, sunlight, carbon dioxide, and
a) soil
b) salt
c) water
d) bacteria
The first organism in a food chain is always a
a) consumer
b) herbivore
c) carnivore
d) producer
What do producers release as a result of photosynthesis?
a) hydrogen
b) nitrogen
c) oxygen
d) carbon dioxide
The very slow movement of the continents is called
a) continental drift
b) biogeography
c) dispersal
d) distribution
What substance in the mouth contains an enzyme that begins chemical digestion?
a) fiber
b) mucus
c) pepsin
d) saliva
What substance coats and protects the inside of the stomach?
a) saliva
b) pepsin
c) mucus
d) bile
The process in which your body breaks down food into small nutrient molecules is called
a) enzyme
b) peristalsis
c) digestion
d) absorption
Which nutrient is needed in order for all body processes to take place?
a) water
b) vitamins
c) fats
d) carbohydrates
Atherosclerosis is a condition in which
a) veins experience a buildup of fatty material
b) muschles in capillary walls lose their ability to contract
c) capillaries widen and release too much fluid
d) artery walls thicken as the result of a buildup of fatty materials
Hypertension is a condition in which
a) blood pressure is consistently lower than normal
b) blood pressure is consistently higher than normal
c) fatty deposits build up on artery walls
d) some of the heart muscle dies
The function of white blood cells is to
a) carry carbon dioxide
b) increase blood pressure
c) carry wastes away from body cells
d) fight disease
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