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Unit 2 Ecology Review
Unit 2 Ecology Review
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Biology 1A Unit 2 Ecology Review #ecology
Flashcards
47 cards
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Practice quiz
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Host live
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Questions
47
Answers
1
Type of succession that occurs after a forest fire
primary
secondary
elementary
tertiary
2
What is an example of a heterotroph?
all of the above
carnivore
omnivore
herbivore
3
Which is NOT an abiotic factor?
soil type
rainfall
plant life
temperature
4
All organisms that live in a particular place together with their nonliving environment
species
biome
ecosystem
population
5
What cycle is shown?
phosphorus
nitrogen
carbon
water
6
The branch of biology dealing with interactions among organisms and between their environment
economy
ecology
recycling
modeling
7
Plants are examples of _________________.
consumers
predators
parasites
autotrophs
8
The final part of any food chain is a --?
decomposer
autotroph
consumer
producer
9
How are ALL autotrophs alike?
all produce carbohydrates and oxygen
all use chemosynthesis to make food
all use photosynthesis to make food
all produce carbon and hydrogen
10
The competitive exclusion principle states:
interactions shape the ecosystem
species require different biotic factors
species require different abiotic factors
no two species can occupy the same niche at the same time
11
What organisms are always at the base of an energy pyramid?
producers
bacteria
decomposers
consumers
12
Matter cycles between the abiotic and biotic parts of an ecosystem
food webs
biogeochemical cycles
biomass cycles
energy pyramids
13
What animals eat both producers and consumers
herbivores
autotrophs
omnivores
chemotrophs
14
Another name for an autotroph is a ____________
omnivore
producer
decomposer
carnivore
15
Humans and bears are considered to be _________ because they eat both plants & animals
producer
omnivore
decomposer
herbivore
16
Process that results in the development of a new ecosystem where there was not one before
climax community
primary succession
tertiary succession
secondary succession
17
What percent of energy gets passed on to the next trophic level?
90
100
1
10
18
Photoautotrophs use __ to produce food.
carbon dioxide
chemicals
sun
water
19
The first organisms to move into an ecosystem
secondary producers
pioneer species
primary consumers
climax community members
20
Bacteria & fungi are examples of ________ they break down organic matter
decomposers
herbivores
carnviores
omnivores
21
The diagram below is an _________ ________ .
food chain
ecological pyramid
food web
graph
22
Kelp is an example of a ________ because they make their own food.
decomposer
producer
carnivore
heterotroph
23
In the food web below the hawk is an _____ because it eats both grasshoppers & other organisms
carnivore
herbivore
omnivore
producer
24
In a food chain or web the arrow points
from the animal that eats to the food
from the secondary consumer to the tertiary consumer
from the producer to the secondary consumer
from the tertiary consumer to the secondary consumer
25
__________ are assemblages of different populations that live in a defined area
communities
populations
species
biomes
26
Organisms that rely on other organisms for energy & food supply are called _____________.
herbivore
heterotroph
producer
autotroph
27
In the food web below what organism is the primary consumer?
snake
insects
grass
deer
28
Trees release water into the air during the process of
photosynthesis
respiration
transpiration
sublimation
29
The combined portions of Earth in which all living things exist
community
biosphere
biome
ecosystem
30
What organism is most important in the nitrogen cycle?
bacteria
humans
producers
consumers
31
What cycle is shown?
carbon
water
phosphorus
nitrogen
32
The energy that is NOT passed on to the next trophic level is
used in reproduction
lost as heat
stored as fat
stored as body tissue
33
Groups of individuals that belong to the same species & live in the same area are ________
biospheres
communities
biomes
populations
34
________ is the main energy source for life on Earth.
stars
moon
sky
sun
35
Plants are examples of _________________.
autotrophs
predators
consumers
consumers
36
_______ ________ are the living components of an ecosystem.
abiotic factors
biotic factors
37
The physical and biological conditions in which an organism lives & the way it uses them
environment
community
niche
location
38
A _________ is a group of organism so similar to one another they reproduce fertile offspring.
biosphere
population
biome
species
39
The term for each step in the transfer of energy and matter within a food web
energy path
trophic level
food pyramid
food chain
40
The image shown below is a ____________ __________.
food chain
ecological pyramid
food web
trophic level
41
Rain falling from the sky is also known as
evaporation
precipitation
sublimation
transpiration
42
Difference between food web and biogeochemical cycle
there is no difference, they are the same thing
energy recycles; matter moves in one direction
energy moves in one direction; matter recycles
43
An organism that DOES NOT need sunlight to live
chemosynthetic bacteria
tree
flower
algae
44
Below is an example of a ____________ which eats other animals
producer
decomposer
carnivore
herbivore
45
A network of complex interactions among organisms:
food web
population
food chain
ecosystem
46
________ _________: physical, or nonliving factor that shapes an ecosystem (ex.temperature)
biotic factors
abiotic factors
47
Heterotrophs are also called _____ because they rely on other organisms for their food & energy
autotrophs
herbivores
producers
consumers