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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
a group of all the same species living in the same area
B
all living and non-living parts of an ecosystem
C
the role a species plays
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
habitat
B
abiotic factor
C
biotic factor
D
niche
3) A ____ is the role a species occupies or how it fits into the environment.
A
biotic factor
B
niche
C
abiotic factor
D
habitat
4) What is an ecosystem?
A
all the living and non-living things in an area
B
the role a species plays in an area
C
only the non-living things in an area
D
only the living things in an area
5) Which of the following are abiotic factors in an ecosystem?
A
water, sunlight, trees
B
sunflowers, rabbits, deer
C
grass, grasshoppers, water
D
soil, temperature, sunlight
6) Which of the following are biotic factors in an ecosystem?
A
fish, water, temperature
B
grass, deer, oxygen
C
sunlight, water, rocks
D
bacteria, algae, trees
7) A ____ is a group of organisms of the same species that all live in the same area.
A
population
B
community
C
biosphere
D
species
8) The ____ is the number of individuals that a given environment can support
A
limiting factor
B
community
C
population
D
carrying capacity
9) ____ are things in an environment that determine how many individuals in a population an ecosystem can support.
A
population
B
community
C
limiting factors
D
carrying capacity
10) All of the following are density-dependent limiting factors except ____.
A
competition for food
B
natural disasters
C
disease
D
predation
11) All of the following are density-independent limiting factors except ____.
A
behavior of an organism
B
drought
C
deforestation
D
parasite
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
competition
B
parasitism
C
commensalism
D
mutualism
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
competition
C
commensalism
D
parasitism
15) The herring fish and alaskan pollock both eat silver shiners. This is an example of ____.
A
parasitism
B
mutualism
C
commensalism
D
competition
16) Polar bears prey on sea lions. If the population of polar bears decreases then the population of sea lions will ____.
A
increase
B
stay the same
C
decrease slightly
D
decrease
17) In a food web or food chain, the arrow represents ____.
A
nothing
B
that energy is created
C
that energy is destroyed
D
energy transferred from one organism to the next
18) All of the following apply to organisms that make their own food except ____.
A
autotroph
B
1st organism in a food chain
C
producer
D
consumer
19) What are organism that cannot make their own food called?
A
producers or consumers
B
hetertrophs or consumers
C
producers or herterotrophs
D
autotrophs or producers
20) In the following food chain, which organism is the secondary consumer? grass - grasshopper - lizard - snake
A
lizard
B
snake
C
grasshopper
D
grass
*select an answer for all questions
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