WorksheetsEcosystems Review
Total questions: 41
Worksheet time: 23mins
Name
Class
Date
1.
_______ factors are all living things located within an ecosystem.
a)
biotic
b)
abitotic
c)
biome
d)
niche
2.
A __________ includes all living and non-living things in an environment.
a)
population
b)
niche
c)
abitotic
d)
ecosystem
3.
_______ factors include all nonliving things located within an ecosystem.
a)
community
b)
abiotic
c)
bitoic
d)
ecoystems
4.
_______ are consumers that eat only meat.
a)
Herbivore
b)
Omnivore
c)
Carnivore
5.
________ are consumers that eat plants and meat.
a)
Herbivore
b)
Omnivore
c)
Carnivore
6.
Which of the following is produced by photosynthesis?
a)
water
b)
sugar
c)
sunlight
d)
carbon dioxide
7.
Which group do fungi, bacteria, and termites belong to?
a)
decomposers
b)
producers
c)
herbivores
d)
omnivores
8.
Which organism make their own food through the process of photosynthesis?
a)
decomposer
b)
consumer
c)
herbivore
d)
producer
9.
What is a group of ecosystems called?
a)
biome
b)
community
c)
population
d)
habitat
10.
What is needed for plants to produce sugar?
a)
water, sunlight, carbon dioxide
b)
water, sunlight, oxygen
c)
water, sunlight, nitrogen
11.
Field mice eat corn. Which would most likely happen if the field mouse population grew?
a)
There would be more corn to feed the field mice.
b)
There would be less corn due to the mice eating it.
c)
The habitat would get overpopulated because the mice woudl eat too much.
12.
Which organism recieves its energy from the sun?
a)
a bee
b)
a cat
c)
a tree
d)
a grasshopper
13.
Which is a difference between abiotic and biotic factors?
a)
abiotic factors are plants and biotic factors are animals
b)
biotic factors are plants and abiotic factors are animals
c)
abiotic factors are all living things and biotic factors are all nonliving things
d)
abiotic factors are all nonliving things and biotic factors are all living things
14.
Which food chain below is stated correctly?
a)
rabbit-grasshopper-plant-eagle
b)
plant-rabbit-grasshopper-egale
c)
plant-grasshopper-rabbit-egale
15.
Which describes a decomposer?
a)
an organism that eats only plants
b)
an organism that makes its own food
c)
an organism that breaks down dead matter
d)
an organism that recieves energy from the sun
16.
Which best explains why producers are at the beginning of all food chains?
a)
They turn dead animals into nutrients
b)
They provide shelter for smaller animals
c)
The transfer energy from the sun into food
17.
What are the nonliving parts of the ecosystem? This includes temperature, water, sunlight, air, and soil.
a)
biotic factors
b)
communities
c)
abiotic factors
d)
microorganisms
18.
If the population of prey increases, the population of predators will ________because of the availability of food.
a)
decrease
b)
stay the same
c)
increase
19.
What are all members of one kind of organism that live in a particular area?
a)
population
b)
microrganisms
c)
community
d)
environment
20.
What are interconnected food chains called?
a)
consumers
b)
predators
c)
food web
21.
_______us an organism that spends a significant portion of its life in or on this.
a)
parasite
b)
host
c)
decomposer
d)
prey
22.
Which group of organisms makes up the largest part of the energy pyramid?
a)
producers
b)
consumers
c)
decomposers
23.
Water is an example of...
a)
Biotic Factor
b)
Abiotic Factor
24.
A symbiotic relationship between two organisms where both species benefit.
a)
Parasitism
b)
Mutualism
c)
Commensalism
d)
BFF
25.
A symbiotic relationship where one species benefits and the other is neither harmed nor does it benefit.
a)
Parasitism
b)
Mutualism
c)
Commensalism
d)
Buddies for life!
26.
A symbiotic relationship where one species benefits and the other is harmed and does not benefit.
a)
Parasitism
b)
Mutualism
c)
Commensalism
d)
Run Away!
27.
Examples of how humans negatively affect local ecosystems are
a)
Building dams, deforestation (cutting down trees), adding point sources to nearby streams to allow for run-off, building roads and structures, and salting roads.
b)
Creating laws to prohibit fishing from local streams.
c)
Planting trees and other plants to attract native species.
d)
Removing non-native species from the environment.
28.
_______________ is another word for the sugar produced in plants.
a)
Cholorphyll
b)
Glucose
c)
Stomata
d)
Carbon Dioxide
29.
Non-native specie causing harm to its environment is called an___________.
a)
extinct
b)
algae
c)
invasive species
d)
consumer
30.
How does energy enter an ecosystem?
a)
sunlight
b)
soil
c)
animals
d)
invasive species
31.
Pollution is anything that people add to the environment that__________________.
a)
disappearing particles
b)
benefits an ecosystem
c)
produces plants
d)
harms living things
32.
A lion, captures and eats other animals. What is he considered?
a)
prey
b)
predator
c)
producer
d)
healthy
33.
What is an example of a decomposer?
a)
rabbits
b)
mushrooms
c)
fungi and some bacteria
d)
trees
34.
The following picture is an example of a ...
a)
population
b)
individual
c)
food chain
d)
food web
35.
This is a process where plants use carbon dioxide, water, and sunlight to make food.
a)
herbivore
b)
producer
c)
symbiosis
d)
photosynthesis
36.
What is a condition or resource that keeps a population at a certain size?
a)
limiting factor
b)
spacing factor
c)
limitations
d)
overcrowding
37.
What are limiting factors?
a)
food , shelter
b)
water
c)
space
d)
all of the above
38.
What happens if organisms no longer have enough space to survive?
a)
they will move or die
b)
they will expand in size
39.
If the population of predators increases, the population of prey will _______
a)
decrease
b)
increase as well
c)
stay the same
d)
stay the same, then increase.
40.
What passes from organism to organism in a food web
a)
an ecosystem
b)
only one niche
c)
energy
d)
abiotic factors
41.
A tick lives on Sam's dog. Which organism is the parasite?
a)
tick
b)
dog
c)
Sam
100 %
