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WorksheetsLife Science Review
Total questions: 46
Worksheet time: 30mins
Name
Class
Date
1.
a leaf on a plant
a)
biotic
b)
abiotic
2.
Biotic factors of an ecosystem are:
a)
non-living
b)
plants
c)
living thing
d)
soil
3.
Temperature, light, air, water, and soil are all _____ parts of the environment
a)
alive
b)
biotic
c)
abiotic
d)
living
4.
Identify an a example of an abiotic factor?
a)
Panda
b)
Turtle
c)
Butterfly
d)
sunlight
5.
Predators like lions, tigers and bears are examples of what kind of factor?
a)
Biotic
b)
Abiotic
c)
living
d)
dead
6.
What are the three categories of biotic factors?
a)
Producer, Decomposer, and Consumer
b)
Decomposer, Consumer, and Rocks
c)
Consumer, Water, and Producer
d)
Weather, Consumer, and Decomposer
7.
Abiotic factors are:
a)
non-living parts of an ecosystem
b)
living parts of an ecosystem
c)
panda, fish and trees
d)
insect, mouse and hawk
8.
Which choice below is defined correctly?
a)
Abiotic factors are alive
b)
Biotic factors are alive
c)
Biotic factors are dead
d)
Abiotic factors can get killed by biotic factors
9.
Identify an example of a biotic factor?
a)
skunk
b)
rocks
c)
soil
d)
water
10.
temperature
a)
biotic
b)
abiotic
11.
living things in an ecosystem
a)
biotic
b)
abiotic
12.
The snake is a predator to what prey in this food chain?
a)
frog
b)
grass
c)
grasshopper
d)
hawk
13.
A living organism that puts materials from dead plants and animals back to the soil is called a ____________?
a)
carnivore
b)
decomposer
c)
herbivore
d)
omnivore
14.
What do the arrows represent in this diagram?
a)
who is being eaten
b)
the flow of energy
c)
the decomposition of organisms
d)
what things can change into
15.
Why is a racoon classified as an omnivore?
a)
A racoon eats only animals.
b)
A racoon eats only plants.
c)
A racoon makes its own food.
d)
A racoon eats plants and animals.
16.
What are organisms that use other organisms for food in order to gain energy?
a)
decomposers
b)
producers
c)
herbivores
d)
consumers
17.
What type of organism makes its own food?
a)
consumer
b)
carnivore
c)
producer
d)
animal
18.
The frog is a predator to what prey in this food chain?
a)
frog
b)
grass
c)
grasshopper
d)
hawk
19.
A red wolf is a __________ and a ________.
a)
producer and hunter
b)
consumer and carnivore
c)
decomposer and carnivore
d)
decomposer and omnivore
20.
Why is a deer classified as a herbivore?
a)
A deer makes its own food.
b)
A deer eats only plants.
c)
A deer eats only animals.
d)
A deer eats plants and animals.
21.
From where do producers get their energy?
a)
the ground
b)
other animals
c)
decomposers
d)
the sun
22.
Scientists found a fossil of an animal with flat teeth that were used for grinding plants, and sharp teeth that are used for tearing meat. What type of consumer does the fossil belong to?
a)
decomposer
b)
herbivore
c)
omnivore
d)
carnivore
23.
An organism that needs to eat other organisms to obtain energy is known as a:
a)
Autotroph
b)
Producer
c)
Consumer
d)
Mutualist
24.
Relationship in which two species live closely together over a longer period of time
a)
resource
b)
mutualism
c)
succession
d)
symbiosis
25.
The rabbit in this food web would be considered a:
a)
Decomposer
b)
Producer
c)
Secondary Consumer
d)
Primary Consumer
26.
What does a Secondary Consumer eat?
a)
Tertiary Consumers
b)
Primary Consumers
c)
Producers
d)
Secondary Consumers
27.
What part of the food chain is missing?
a)
Producer
b)
Consumer
c)
Decomposer
d)
Heterotroph
28.
Which of the following organism provides energy for more than one organism in the food web?
a)
Mouse
b)
Hawk
c)
Snake
d)
Lizard
29.
Based on the food web, which shows correctly the one way that energy flows?
a)
Plant -->Rat -->Owl
b)
Plant <--Rat <-- Owl
30.
In this food web, which two organisms could be harmed if the mouse population were to decrease?
a)
Deer and caterpillar
b)
Wolf and snake
c)
Oak and grass
d)
Hawk and songbird
31.
In the food web shown, the snail would be considered...
a)
primary consumer
b)
secondary consumer
c)
tertiary consumer
d)
producer
32.
A secondary consumer
a)
eats primary consumers
b)
eats producers
c)
eats plants
33.
What is this called in a food chain?
a)
Producer
b)
Consumer
c)
Decomposer
34.
What is this?
a)
Decomposer
b)
Consumer
c)
Producer
35.
What is a food chain?
a)
A necklace.
b)
Jewelry made of food.
c)
A path showing how energy moves from one living thing to another.
d)
A life cycle.
36.
What is a herbivore?
a)
an animal that gets energy from eating other animals
b)
an organism that gets energy from eating only plants
c)
an animal that gets energy by eating both plants and other animals
d)
an animal that eats only herbs
37.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
38.
A primary consumer eats
a)
producers
b)
animals
c)
secondary consumers
39.
What will happen to the population when the death rate is larger than the birth rate?
a)
grow
b)
shrink
c)
stay the same
40.
There is a flock of 21 birds. 3 birds immigrate to the flock but 9 emigrate.
a)
grow; 15 birds in the end
b)
shrink; 15 birds in the end
c)
grow; 27 birds in the end
d)
shrink; 27 birds in the end
41.
A snake is eaten by a hawk. The hawk is the _______.
a)
prey
b)
parasite
c)
predator
d)
all of these
42.
Limiting factors are sometimes helpful because they can keep the population from getting to large.
a)
True
b)
False
43.
What does symbiosis mean?
a)
living separately, no relationship between 2 species
b)
living together, close relationship between 2 species
c)
living separately, long distance relationship between 2 species
44.
Any thing or organism that regulates the size of a population of another organism is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
factorization
d)
materialization of precipitation
45.
If a disease destroying barley plants in a field swept through an ecosystem, what would happen to the barley eating bird population in the the field ?
a)
The bird population would stay the same
b)
The bird population would infinitely increase
c)
The bird population would decrease
46.
What would happen if the population of hawks suddenly increased? How would it affect the other organisms in the ecosystem?
a)
The snakes would decrease due to more hawks eating them
b)
All of the population of organisms would increase
c)
The biotic factors in the ecosystem would increase
d)
The hawks predators would decrease
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