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Ecology Unit Test Review Flashcards | StudBud
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Ecology Unit Test Review
Ecology Unit Test Review
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Review for ecology. Includes energy flow,cycles, populations, humans in environment.
Flashcards
29 cards
F
Practice quiz
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Host live
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Questions
29
Answers
1
What is a decomposer?
a carnivore that eats dead animals
the soil
a consumer that breaks down the remains of dead organisms
the sun
2
Which of these is an example of group behavior by ants?
breathing
building tunnels
sleeping
crawling
3
Which organism is a primary consumer?
Plant
Grasshopper
Owl
Weasel
4
In an ecosystem, which type of organism receives energy from every other level?
Producers
decomposers
consumers
predators
5
Autotroph or heterotroph?
autotroph
heterotroph
6
Keystone species...
unlock the mysteries of life
are made of rock
keep the entire community in balance
are producers
7
A ___________ is a series of interrelated food chains within an ecosystem.
food chain
energy chain
food web
ecosystem
8
As a population reaches carrying capacity there will be more competition for
space
all of the above
mates
food
9
Carnivore(s) in this food chain...
owl
shrew and owl
grasshopper
grasshopper and shrew
10
Reindeer are
herbivores
. What does that mean?
they have antlers
they have a herbal scent
they only eat plants
they live in tundra
11
On an energy pyramid, organisms feed on the level
any level they want
they are at
directly above them
directly below them
12
A forest that contains 25 different plant species is __ than a forest with 55 plant species.
smaller
larger
more biodiverse
less biodiverse
13
If the coyote population suddenly increased what would happen to the rabbit population?
It would decrease
It would increase
It would stay the same
No idea
14
The base level of an energy pyramid is composed of
producers
decomposers
consumers
predators
15
________ is the study of the interaction of living organisms and the physical environment.
oceanography
environmental science
biology
ecology
16
Ecology - Which line represents the predator population in this graph?
Blue
Red
17
Organic material in an ecosystem is called
biomass
living
trophic level
ecomass
18
A group of organisms of the same species living in the same area is called
a community
a population
an ecosystem
a pioneer species
19
Source of all energy
trophic levels
biomolecules
sun
producers
20
Photosynthetic algae would be an example of a
parasite
producer
consumer
decomposer
21
What ecology concept does this graph demonstrate?
Carrying capacity
Unlimited population growth
Population decline
math!
22
Autotroph or heterotroph?
autotroph
heterotroph
23
How much energy is transferred from one trophic level to the next?
50%
100%
10%
90%
24
Keystone species...
Would not dramatically change an ecosystem when removed
Play a critical role in maintaining the ecosystem
Have no value in the ecosystem
I have no idea
25
A population grows when
birth rate is greater than the death rate
death rate is higher than birth rate
emigration is greater than immigration
birth rate is equal to death rate
26
The flow of energy can be modeled with a
energy diagram
food chain
flow chart
food diagram
27
What does a carnivore eat?
Plants and Meat
Plants
Water
Meat
28
Biotic factors are _________; abiotic factors are _________
living, physical
nonliving, living
nonliving, cells
living, nonliving
29
Why does the rabbit population level off over time?
They stopped having babies--who wants more kids anyway?
Rabbits succumb to disease when there are too many.
Predators keep the numbers down
The environment doesn't have resources to support more.
