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Life Science Part 1

Total questions: 45

Worksheet time: 33mins

Name
Class
Date
1.

A population of rabbits in a forest is...

a)

A group of one species in one area

b)

Multiple species that live in one area

c)

All of the living and nonliving things in an area

d)

None of these

2.

A type of animal that Aiden observed in the park eating only grass and leaves.

a)

scavenger

b)

omnivore

c)

herbivore

d)

carnivore

3.

Oliver has a pet that enjoys eating both his vegetable garden and the leftover chicken from dinner. What type of animal is his pet?

a)

carnivore

b)

omnivore

c)

herbivore

d)

scavenger

4.

During a biology class, Elijah observed an animal in a video that eats only meat. What type of animal is it?

a)

herbivore

b)

omnivore

c)

carnivore

d)

scavenger

5.

Organisms that breakdown all the dead plants and animals and their waste and are converted into nutrients for plants.

a)

carnivores

b)

consumers

c)

producers

d)

decomposers

6.

All the green plants that provide the energy for consumers.

a)

consumers

b)

producers

c)

decomposers

d)

herbivores

7.

A diagram that shows the transfer of energy from one organism to another (who is eaten by what).

a)

ecosystem

b)

environment

c)

food chain

d)

food web

8.

A diagram that shows the transfer of energy in an ecosystem by using several food chains.

a)

ecosystem

b)

food web

c)

environment

d)

food chain

9.
All of the different populations that live in a specific area.
a)
ecosystem
b)
habitat
c)
ecology
d)
community
10.
An abiotic part of an ecosystem; required by plants to perform photosynthesis.
a)
water
b)
soil
c)
sunlight
d)
oxygen
11.

During a science project, Ava, Ethan, and Oliver are exploring the source of energy for plants. Where do they conclude all life forms get their energy?

a)

Earth's Core

b)

Water

c)

Plants

d)

The Sun

12.

In a forest ecosystem, what do you call an animal like a lion that hunts and eats other animals?

a)

Prey

b)

Producer

c)

Predator 

d)

Decomposer 

13.
Which is an example of a producer?
a)
A Human
b)
A Spider
c)
A Tree 
d)
A Caterpillar 
14.

If the honeybee becomes extinct, which part of the food chain is affected? 

a)

The whole food chain is affected

b)

Only animals at the top of the food chain are affected 

c)

Only animals at the bottom of the food chain are affected 

15.
A plant or animal that gets its energy (food) from other living things is called:
a)
Decomposers
b)
Consumers
c)
Carnivores
d)
Herbivores
16.

In a forest ecosystem, how do decomposers like fungi and bacteria help other organisms like trees and animals?

a)

They break down dead plants and animals and add nutrients back into the soil

b)

They use the sun to make food 

c)

Decomposers only break down dead plants 

d)

They do not help other organisms in an ecosystem

17.

In a forest ecosystem, the complex network of interactions between plants, animals, and microorganisms for food is called:

a)

Food Web

b)

Food Chain

c)

Ecosystem

d)

Population

18.

In a garden ecosystem, plants like sunflowers and grass that convert the sun's energy into food and serve as a source of nourishment for other organisms are known as:

a)

Producer

b)

Consumer

c)

Decomposer

d)

Herbivore

19.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
20.
An animal that is hunted and eaten for food is a 
a)
predator
b)
prey
c)
population
21.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
22.
How many carnivores are shown in this food web?
a)
6
b)
4
c)
5
d)
3
23.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population in James's backyard?

a)

There would be a decrease in the small bird population.

b)

There would be a decrease in the grass/flowers population.

c)

There would be a decrease in the mice population.

d)

There would be an increase in the grass/flowers population.

24.
What does a food chain represent?
a)
How all living organisms within a habitat are connected.
b)
All of the things that a particular animal eats.
c)
How plants create their own food.
d)
A single path of energy transfer within a habitat.
25.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
26.

Why might a rabbit have more than one arrow coming from them in a food web?

a)

More than one predator may eat them.

b)

They may eat more than one type of plant.

c)

This rabbit gets its energy from multiple sources.

27.
The largest group of organisms found in a food web would be:
a)
Primary Consumers
b)
Producers
c)
Decomposers
d)
Tertiary Consumers
28.
What may happen if the snowshoe hare was removed from the food web pictured?
a)
The insects in the habitat would increase.
b)
The shrew population would decrease due to being only hawk food source.
c)
The willow tree population would decrease.
d)
Foxes would dies due to no food source. 
29.
The shrew provides energy for the _______?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
30.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
31.
Which organism has the most energy and which organism has the least amount of energy? Choose the best answer. 
a)
mosquito and grass
b)
mouse and grass
c)
grass and owl
d)
grass and small bird
32.
What is missing from this food chain?
Grass > Grasshopper > Bird > Snake
a)
Producer
b)
Primary Consumer
c)
Secondary Consumer
d)
Decomposer
33.
Which organism recieves the least amount of energy from the producer?
a)
Owl
b)
Grasshopper
c)
Lilypad
d)
Mouse
34.

Energy flows from the ______ to _______.

a)

Sun to consumers

b)

Predator to the prey

c)

Sun to producers

d)

Predator to the Sun

35.

How does Aria gain energy for her daily activities?

a)

from Sunlight

b)

by eating fruits, vegetables, and sometimes chicken

c)

by going to the grocery store and buying snacks

d)

by photosynthesizing in her backyard

36.

Which of the following would be an example of a prey and predator relationship?

a)

bee and a flower

b)

corn and a pig

c)

rabbit and a fox

d)

berry bush and a deer

37.

If the number of frogs decreases, what would happen to the crickets that the frogs would eat?

a)

The number of crickets would decrease

b)

The number of crickets would increase

c)

The number of crickets would remain the same

d)

The crickets would move away.

38.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
39.
Which of these organisms would receive energy from the snake?
a)
Plant
b)
Rabbit
c)
Mouse
d)
Hawk
40.
Which of these is true about this food web?
a)
The Owl gets its energy from the producer.
b)
The Lion gets its energy only from a wild cat.
c)
The Kite gets its energy from the goat.
d)
The Mouse is most likely to die, several ways.
41.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
42.

For an energy pyramid, the 10% rule states that

a)

10% of the energy is transferred from one organism to the next.

b)

10% of the energy is gained.

c)

10% of the animals will starve.

d)

10% of the producers are eaten.

43.
In the energy pyramid here, how much of the energy in the producers gets passed to the herbivores?
a)
10%
b)
20%
c)
80%
d)
90%
44.

An energy pyramid represents the relative amount of energy in trophic levels. Which of the following correctly shows an energy pyramid?

a)
A
b)
B
c)
C
d)
D
45.
Which is the smallest level of an ecosystem?
a)
organsism
b)
population
c)
community
d)
ecosystem

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