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Ecology Part 1
Test Description: Biotic/abiotic foodwebs/foodchains interactions symbiosis ecosystem organization carryingcapacity/limiting factors cycles of matter
Instructions: Answer all questions to get your test result.
1) what is a species
A
all living and non-living parts of an ecosystem
B
the role a species plays
C
a group of all the same species living in the same area
D
a groups of organisms living in an area that can produce fertile offspring
2) The place where an organism lives and finds food is called its ____.
A
niche
B
abiotic factor
C
habitat
D
biotic factor
3) A ____ is the role a species occupies or how it fits into the environment.
A
biotic factor
B
habitat
C
niche
D
abiotic factor
4) What is an ecosystem?
A
only the living things in an area
B
the role a species plays in an area
C
only the non-living things in an area
D
all the living and non-living things in an area
5) Which of the following are abiotic factors in an ecosystem?
A
grass, grasshoppers, water
B
soil, temperature, sunlight
C
sunflowers, rabbits, deer
D
water, sunlight, trees
6) Which of the following are biotic factors in an ecosystem?
A
bacteria, algae, trees
B
grass, deer, oxygen
C
fish, water, temperature
D
sunlight, water, rocks
7) A ____ is a group of organisms of the same species that all live in the same area.
A
species
B
biosphere
C
community
D
population
8) The ____ is the number of individuals that a given environment can support
A
carrying capacity
B
population
C
community
D
limiting factor
9) ____ are things in an environment that determine how many individuals in a population an ecosystem can support.
A
limiting factors
B
population
C
carrying capacity
D
community
10) All of the following are density-dependent limiting factors except ____.
A
predation
B
competition for food
C
natural disasters
D
disease
11) All of the following are density-independent limiting factors except ____.
A
parasite
B
behavior of an organism
C
deforestation
D
drought
12) Protozoa live in the termite intestines. They break down wood the termite eats while the termite provides food and shelter to the protozoa. This is an example of ____.
A
commensalism
B
mutualism
C
parasitism
D
competition
13) Barnacles hitch a ride on whales but do not affect the whale in anyway. This is an example of ____.
A
competition
B
mutualism
C
commensalism
D
parasitism
14) A tape worm lives inside an animal host's intestines stealing nutrients from the animal host. This is an example of ____.
A
mutualism
B
parasitism
C
competition
D
commensalism
15) The herring fish and alaskan pollock both eat silver shiners. This is an example of ____.
A
commensalism
B
competition
C
mutualism
D
parasitism
16) Polar bears prey on sea lions. If the population of polar bears decreases then the population of sea lions will ____.
A
decrease
B
stay the same
C
decrease slightly
D
increase
17) In a food web or food chain, the arrow represents ____.
A
energy transferred from one organism to the next
B
nothing
C
that energy is created
D
that energy is destroyed
18) All of the following apply to organisms that make their own food except ____.
A
1st organism in a food chain
B
autotroph
C
consumer
D
producer
19) What are organism that cannot make their own food called?
A
producers or herterotrophs
B
hetertrophs or consumers
C
producers or consumers
D
autotrophs or producers
20) In the following food chain, which organism is the secondary consumer? grass - grasshopper - lizard - snake
A
snake
B
grasshopper
C
lizard
D
grass
*select an answer for all questions
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