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Bio Semester 1
Test Description: Bio 1 sem 1 review
Instructions: Answer all questions to get your test result.
1) The branch of biology dealing with interactions among organisms and between organisms and their environment is called
A
genetics
B
zoology
C
biochemistry
D
ecology
2) What is most of the initial source that creates energy in most ecosystems?
A
water
B
sun
C
carbohydrates
D
moon
3) Organisms that obtain and recycle nutrients by breaking down plant and animals materials
A
decomposer
B
detrivore
C
omnivore
D
producer
4) All the interconnected feeding relationships in an ecosystem make up a food
A
interaction
B
chain
C
web
D
network
5) An organism that cannot make its own food is called a(an)
A
producer
B
autotroph
C
chemotroph
D
heterotroph
6) What ecological relationship causes a neutral (no effect) result to one organism and positive to another?
A
competition
B
mutualism
C
commensalism
D
parasitism
7) Photosynthetic and chemosynthetic organisms are examples of
A
eutrophication
B
detrivores
C
heterotrophs
D
autotrophs
8) Using the food chain what is the snake (plant insect frog snake)
A
tertiary consumer.
B
primary consumer.
C
secondary consumer.
D
primary producer.
9) Each of the following is a density-dependent limiting factor EXCEPT
A
fires
B
disease
C
competition
D
over population
10) Which type of pyramid shows the weight of living tissue (organisms) at each trophic level in an ecosystem?
A
a biomass pyramid
B
a food pyramid
C
a numbers pyramid
D
an energy pyramid
11) Which of the following shows the a correct order of the levels of ecology organization?
A
biosphere - population - community - biome - individual - ecosystem
B
individual - population - community - ecosystem - biome - biosphere
C
population - individual - community - ecosystem - biosphere - biome
D
individual - population - biome - community - biosphere - ecosystem
12) In a logistic growth curve, exponential growth is the phase in which the population
A
grows quickly.
B
growth stops.
C
levels off to carrying capacity.
D
growth begins to slow down.
13) Which of the following decreases as it moves through food chains and webs in the biosphere?
A
carbon
B
nitrogen
C
energy
D
water
14) Which event is most likely to initiate (start) primary succession?
A
clearing a wooded area
B
logging
C
forest fire
D
volcanic eruption
15) How do animals obtain nitrogen in a usable form?
A
Through consumption of plants or plant eating animals
B
When they breathe
C
Through photosynthesis
D
Through consumption of bacteria
16) Carbon cycles through the biosphere in all of the following processes EXCEPT
A
burning of fossil fuels.
B
decomposition of plants and animals.
C
photosynthesis.
D
denitrification
17) How much energy is LOST moving up each trophic level?
A
90%
B
no energy is lost
C
100%
D
10%
18) Eutrophication is when an algea bloom leads to
A
bacteria depleating oxygen in water
B
plants depleating nitogen levels
C
plants depleating water levels
D
bacteria killing plants in the water
19) What is the term for when chemicals or toxins are moved up the food chain in higher concentrations.
A
Chemosynthesis
B
Chemosynthesis
C
Nitrogen cycling
D
Biomass Accumulation
20) Which organic compound is the main source of energy for living organisms?
A
nucleic acids
B
proteins
C
carbohydrates
D
lipids
*select an answer for all questions
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