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Bella SCience

Total questions: 136

Worksheet time: 2hrs 33mins

Name
Class
Date
1.

A self sustainable community of organisms living in a particular area on earth.

a)

ecosystem

b)

population

c)

abiotic factors

d)

biotic factors

2.

The non living components of the ecosystem.

a)

ecosystem

b)

population

c)

abiotic factors

d)

biotic factors

3.

The living components of the ecosystem.

a)

ecosystem

b)

population

c)

abiotic factors

d)

biotic factors

4.

Organisms interact with each other and their environment to meet their basic needs and survive.

a)

True

b)

False

5.

Which of the following is an example of mutualism?

a)

A snake eating the rat

b)

A butterfly on a flower

c)

A tick sucking dog's blood

d)

Hyenas and lions both try to eat the same prey.

6.

It is a kind of symbiotic relationship where one species of organism benefits while the other is not affected.

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Competition

7.

In predation the animal that kills and eat other animal is called __________.

a)

prey

b)

predator

c)

commensal

d)

parasite

8.

Which of the following is the abiotic component of the ecosystem?

a)

light

b)

man

c)

plant

d)

animal

9.

Lack of rainfall in the desert

a)

Abiotic

b)

Biotic

10.

Dry soil during summer

a)

Abiotic

b)

Biotic

11.

Animals do not reproduce

a)

Abiotic

b)

Biotic

12.

Death of plants

a)

Abiotic

b)

Biotic

13.

Rivers dry up

a)

Abiotic

b)

Biotic

14.

The population of polar bears decreases

a)

Abiotic

b)

Biotic

15.

High pH near the volcanic vent

a)

Abiotic

b)

Biotic

16.

Increase in the variety of producers

a)

Abiotic

b)

Biotic

17.

Low amount of light present

a)

Abiotic

b)

Biotic

18.

Microorganisms in soil

a)

Abiotic

b)

Biotic

19.

Which of the following is an abiotic factor produced by plants?

a)

Seed

b)

Carbon Dioxide

c)

Oxygen

d)

Fruit

20.

What do you call the living organisms that inhabit an environment?

a)

Community

b)

Biotic Factors

c)

Population

d)

Abiotic Factors

21.

In which place do biotic and abiotic factors interact?

a)

Ecology

b)

Biosphere

c)

Community

d)

Ecosystem

22.

How will you classify the factors such as sunlight, oxygen, air, and rocks?

a)

Biotic

b)

Abiotic

c)

Living

d)

Alive

23.

Which of the following represents an abiotic component of the environment?

a)

Growing grasses on mountain

b)

Cat nursing its young

c)

Sprouting mongo seeds

d)

Flowing lava

24.

On which abiotic factors would varieties of fish and seaweeds rely for their survival?

a)

Insects and sun

b)

Water and corals

c)

Water and temperature

d)

Solid particles and temperature

25.

Which abiotic factor below is NOT required by plants during photosynthesis?

a)

Sunlight

b)

Oxygen

c)

Water

d)

Carbon Dioxide

26.

Which biotic factor below is NOT involved in the decomposition of matter?

a)

Bacteria

b)

Plants

c)

Fungi

d)

Detrivores

27.

A plant needs water, radiant energy, minerals, oxygen, and carbon dioxide to live. How are these requirements needed by plants categorized?

a)

Climate

b)

Minerals

c)

Biotic

d)

Abiotic

28.

One of the following statements describes biotic factors in an ecosystem correctly. Which one is it?

a)

Gases and water in an area.

b)

Non-living things in an organism's environment.

c)

Plants, animals, fungi and bacteria in an environment.

d)

Solid materials such as rock and soil found everywhere.

29.

It consists of all the organisms that live in an ecosystem and composed of different population.

a)

ecosystem

b)

community

c)

population

d)

habitat

30.

What is an ecosystem?

a)

A community of interacting organisms and their chemical environment.

b)

A community of non-interacting organisms and their physical environment.

c)

A biological community of interacting organisms and their physical environment.

d)

A biological community of interacting organisms and their chemical environment.

31.

Which of the following is a biotic factor?

a)
b)
c)
d)
32.

Soil mineral is an example of

a)

Biotic factor

b)

Abiotic factor

c)

  Both biotic and abiotic

d)

None of the choices

33.

They use light energy to synthesize food on their own

a)

Consumer

b)

Decomposer

c)

Producer

d)

Animals

34.

They act on dead matter and decay them for nutrition.

a)

Consumer

b)

Decomposer

c)

Producer

d)

Plants

35.

Which of the following statements about ecosystems is true?

a)

Ecosystems can be any size

b)

An ecosystem consists of only living things

c)

An ecosystem consists of only non-living things

d)

Different animals cannot live in the same ecosystem

36.

Plants, animals and fungi are called ___

a)

Consumers

b)

Producers

c)

Decomposers

d)

Organisms

37.

Which of the following should be the next item below?

Biotic: trees, squirrels, bacteria

Abiotic: light, water, ___

a)

Worms

b)

Ferns

c)

Cacti

d)

Soil

38.

All the living and nonliving things in a town’s pond make up a/an____.

a)

Ecosystem

b)

Habitat

c)

Biosphere

d)

Community

39.

Biotic and abiotic factors in an ecosystem ___ with each other.

a)

Communicate

b)

Compete

c)

Interact

d)

Do not interact

40.
A relationship that describe a close interaction between two different species is known as what?
a)
Biodiversity
b)
Symbiosis
c)
Predation
d)
Emigration
41.
This is known as a relationship in which one organism benefits, while the other is unaffected.
a)
Parasitism
b)
Mutualism
c)
Immigration
d)
Commensalism
42.
The organism that is hunted and eaten in a particular feeding relationship is known as:
a)
Predator
b)
Decomposer
c)
Prey
d)
Autotroph
43.
An animal that feeds on what another animal has killed is known as a:
a)
Scavenger
b)
Mutualist
c)
Decomposer
d)
Parasite
44.
This is known as a relationship in which both organisms involved benefit. 
a)
Predator-Prey
b)
Commensalism
c)
Mutualism
d)
Decomposition
45.
An organism that helps to recycle nutrients within an ecosystem by eating dead or decaying organisms is a:
a)
Predator
b)
Autotroph
c)
Producer
d)
Decomposer
46.

Remoras are fish that generally latch on to sharks and eat leftovers of food from the shark. This is an example of which type of ecological relationship?

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Competition

47.

Plover birds typically eat parasites trapped inside of crocodiles' mouths. The plover receives a meal, while the crocodile is rid of parasites. What type of ecological relationships does this scenario represent?

a)

Mutualism

b)

Predator/Prey

c)

Competition

d)

Commensalism

48.

Lions typical fight to death for territory, mates, and food sources. Lions are most likely fighting due to:

a)

Commensalism

b)

Mutualism

c)

Competition

d)

Parasitism

49.

Cordyceps are a type of a fungi that hijack insects muscular and nervous systems, eventually leading to the death of the insect. What type of relationship is this?

a)

Commensalism

b)

Predator/Prey

c)

Parasitism

d)

Competition

50.

As a leopard is searching for prey, a lion stalks and slowly approaches it. This could be considered what type of relationship between the lion and leopard?

a)

Competition

b)

Predator/Prey

c)

Mutualism

d)

Commensalism

51.

This is the study of the environment and the organisms living in it.

a)

Biology

b)

Ecology

c)

Meteorology

d)

Zoology

52.

The following are the biotic components in an ecosystem, except one;

a)

Water

b)

Producers

c)

Consumers

d)

Decomposers

53.

This type of consumer eats both plants and animals.

a)

Autotrophs

b)

Herbivores

c)

Carnivores

d)

Omnivores

54.

Below are the sub-types of a symbiotic relationship, except one;

a)

Competition

b)

Mutualism

c)

Commensalism

d)

Parasitism

55.

In this relationship only one specie gets benefited while the other is harmed.

a)

Competition

b)

Mutualism

c)

Commensalism

d)

Parasitism

56.

Identify what type of ecological relationship is being shown in the picture:

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation

57.

Identify what type of ecological relationship is being shown in the picture;

a)

Competition

b)

Predation

c)

Mutualism

d)

Parasitism

58.

Identify what type of ecological relationship is being shown in the picture;

a)

Competitioon

b)

Predation

c)

Mutualism

d)

Commensalism

59.

Identify what type of ecological relationship is being shown in the picture;

a)

Competition

b)

Predation

c)

Mutualism

d)

Commensalism

60.

Identify what type of ecological relationship is being shown in the picture;

a)

Competition

b)

Predation

c)

Mutualism

d)

Parasitism

61.
Pseudoscorpions often hitch rides on the backs of large beetles or true bugs. What is the ecological relationship?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Cooperation
62.
What term best describes the grasshopper?
a)
Herbivore
b)
Predator-prey
c)
Competition
d)
Producer
63.
Barnacles sometimes live on the outside surface of other larger shelled organisms without causing any harm. What is the ecological relationship?
a)
Mutualism
b)
Parasitism
c)
Commensalism
d)
Predator-Prey
64.
Cows and pronghorn both eat the same types of food in areas of Utah. What is the ecological relationship?
a)
Cooperation
b)
Parasitism
c)
Commensalism
d)
Competition
65.
Ants protect soft bodied aphids and in return the aphids feed the ants a sugary drink. What is the ecological relationship?
a)
Cooperation
b)
Parasitism
c)
Commensalism
d)
Mutualism
66.
The tiny organism that cause harm on the host body. 
a)
host
b)
  parasites
c)
 predator
d)
 prey 
67.
It is a kind of relationship where both living organisms benefit from each other. 
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation 
68.
A mosquito feeds off of the blood of different organisms. This usually causes discomfort to the organism and sometimes disease and death. What ecological relationship is it?
a)
Commensalism
b)
Mutualism
c)
Parasitism
d)
Predation
69.
What relationship between trees in the forest where taller trees are capable of absorbing more sunlight, making it less accessible to the shorter tree species that are shaded by them. 
a)
predation
b)
Commensalism
c)
Intraspecific competition
d)
Interspecific competition
70.
Which of the following is characteristic of predation? 
a)
One organism kills and consumes another.
b)
One organism lives in or on another and benefits.
c)
Two organisms live together and neither is harmed.
d)
Two organisms nourish each other; both benefit.
71.

A feeder fish usually follows behind sharks to pick up food scraps that they leave behind. The fish gets food and the shark is unaffected. What ecological relationshipsrepresents?

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Decomposition

72.
A feeding relationship where one organism hunts and one is hunted.
a)
Commensalism
b)
Decomposistion
c)
Mutualism
d)
Predator-Prey
73.
This term describes a living part of an environment.
a)
Biotic factor
b)
Sunlight
c)
Abiotic Factor
d)
Niche
74.
Non-living components of an environment are considered to be:
a)
Biotic Factors
b)
Heterotrophs
c)
Abiotic factors
d)
Decomposers
75.
A relationship between two organisms where one benefits while the other is harmed is known as what?
a)
Decomposition
b)
Consummerism
c)
Mutualism
d)
Parasitism
76.

The original source of energy for a food web is...

a)

plants

b)

sun

c)

producers

d)

decomposers

77.

Decomposers get energy from...

a)

the sun

b)

eating plants

c)

eating animals

d)

dead things and waste

78.

Producers are ...

a)

plants

b)

able to do photosynthesis

c)

also called autotrophs

d)

all of these are true

79.

Arrows in a food web represent...

a)

eating

b)

sunlight

c)

energy

d)

matter

80.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

81.

What is a producer?

a)

an organism that gets energy from eating other organisms

b)

an organisms that uses sunlight to make its own food

c)

an organism that gets energy from eating dead organisms, non-living material or waste

82.

An animal that hunts other animals for food is a ___________

a)

herbivore

b)

predator

c)

prey

d)

omnivore

83.

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

84.

An organism that gets energy from eating other organisms is a ______________

a)

producer

b)

consumer

c)

decomposer

85.

A connection of food chains with many food energy paths in an ecosystem is a ____________

a)

ecosystem

b)

food web

c)

environment

86.

What is a carnivore?

a)

an animal that gets energy by eating other animals

b)

An animal that gets energy by eating only plants

c)

an animal that gets energy by eating both plants and animals

87.

Which of the following is NOT a consumer

a)

grass

b)

dog

c)

shark

d)

fish

88.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
89.
What is this called?
a)
Food Web
b)
Food Chain
c)
Abiotic Factors
90.
If a frog is the prey, what could be the predator?
a)
Grass
b)
Insect
c)
Snake
d)
Snail
91.
An animal that eats other animals is a....
a)
carnivore
b)
omnivore
c)
herbivore
d)
decomposer
92.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
93.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a ecosystem.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
94.
__________ is an organism that only eats meat for energy.
a)
Omnivore
b)
Borivore
c)
Herbivore
d)
Carnivore
95.
__________ is an organism that eats BOTH plants and animals for energy.
a)
Omnivore
b)
Darnivore
c)
Carnivore
d)
Herbiovre
96.
All energy on Earth ultimately comes from what source?
a)
Water
b)
Sun
c)
Consumers
d)
Oxygen
97.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
98.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
99.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
100.
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 
101.
Which type of consumer eats plants only?
a)
Herbivores
b)
Omnivores
c)
Carnivores
d)
Scavengers
102.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
103.
An organism that uses sunlight to create its own food is known as a:
a)
Producer
b)
Heterotroph
c)
Consumer
d)
Decomposer
104.

relationship in which one population is inhibited and the other is not affected

(a)  

105.

relationship of two species of bacteria in which the antibiotic is introduces

(a)  

106.

occurs when to or more interacting members of community affect influence one another's evolution

(a)  

107.

relationship of hummingbirds and flower of the fushia plant

(a)  

108.

relationship that takes place when species in the community fight over limited supply

(a)  

109.

principle which state that no two competing species can occupy the same area at the same time

(a)  

110.

relationship in which animal eat plant or plant like organism

(a)  

111.

relationship in which a living organism feeds on the remains of dead plant or animal

(a)  

112.

relationship in which there is a close and permanent association exist between organism of same species

(a)  

113.

relationship of ants and aphids

(a)  

114.

relationship of deer and leaves

(a)  

115.

relationship of lions attacking buffalo

(a)  

116.

RELATIONSHIP OF CATTLE EGRETS AND CATTLE

(a)  

117.

orchids growing on the branches of the tree

(a)  

118.

fungus inhibiting the growth of bacteria

(a)  

119.

The four abiotic factors that affect all aquatic ecosystems are...

a)

whales, tuna, tripod fish, and sharks

b)

streams, rivers, ponds, and lakes

c)

sunlight, temperature, oxygen, and salt content

d)

soil, sunlight, rocks, and minerals

120.

___________ and ___________ are the two major types of aquatic ecosystems.

a)

Ponds and lakes

b)

Freshwater and marine

c)

Streams and rivers

d)

Salt and fresh

121.

____________________ ecosystems include streams, rivers, ponds, and lakes.

a)

Marine

b)

Ocean

c)

Freshwater

d)

Aquatic

122.

Gills for breathing oxygen in water, fins, tails, and scales for insulation and protection are all examples of ___________________ fish have to allow them to live in water.

a)

relationships

b)

modifications

c)

adaptations

d)

changes

123.

Sunlight is important to ALL aquatic ecosystems because it is needed for _______________________ to make food and oxygen.

a)

consumers

b)

producers

c)

decomposers

d)

scavengers

124.

Only _____ of the water covering Earth's surface is fresh water.

a)

3%

b)

20%

c)

47%

d)

63%

125.
What is the name for areas with the same kind of biotic and abiotic factors spread over a large area. 
a)
Community
b)
Ecosystem
c)
Biosphere
d)
Biome
126.
Aquatic means
a)
Relating to water
b)
Relating to oceans
c)
Relating to fresh water
d)
Does not include rivers
127.
Terrestrial means
a)
Can fly
b)
Relating to water
c)
Relating to space
d)
relating to land
128.

This biome is much like a cold desert.

a)

tundra

b)

taiga

c)

boreal forest

d)

grassland

129.

This biomes gets very little rainfall.

a)

temperate forest

b)

rainforest

c)

grassland

d)

desert

130.

This biome gets very cold in the winter, but not quite as cold as the tundra.

a)

grassland

b)

taiga

c)

temperate forest

d)

rainforest

131.

Most trees in this biome lose their leaves in the winter.

a)

rainforest

b)

boreal forest

c)

taiga

d)

temperate forest

132.
Biome with plants and grasses, but no trees.
a)
grassland
b)
savannah
c)
taiga
d)
tundra
133.
Biome with plants and grasses, but no trees.
a)
grassland
b)
savannah
c)
taiga
d)
tundra
134.
Cold, dry biome where the soil stays frozen the entire year. Very little precipitation.
a)
savannah
b)
taiga
c)
tundra
d)
desert
135.
A group of ecosystems with similar organisms and climates.
a)
desert
b)
deciduous
c)
canopy
d)
Biome
136.
Northern biome with many coniferous trees; very cold temperatures in the winter months.
a)
Taiga
b)
tundra
c)
desert
d)
temperate rain forest