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Worksheets

Organism

Total questions: 25

Worksheet time: 25mins

Name
Class
Date
1.

Which is the smallest level of an ecosystem?

a)

organism

b)

population

c)

community

d)

ecosystem

2.

A producer?

a)

Eats other plants and animals

b)

Makes its own food

c)

Eats dead plants or animals

d)

Makes toys for kids

3.

A decomposer?

a)

Eats dead plants or animals and breaks down to put nutrients in the soil

b)

Eats plants or other animals for food

c)

Makes its own food

d)

Machine that gathers trash

4.

The frog is a?

a)

Producer

b)

Consumer

c)

Decomposer

5.

living things, such as plants, animals, and bacteria are called (a)  

Choose from the below words

organisms

organ systems

organ music

organizations

6.

What are TWO likely reasons why the striped skunk has a much greater population in the wild than the giant panda?

7.

We are raising​ ​​ (a)   trout in our tank.

Choose from the below words

Rainbow

Brown

Golden

Brook

8.

Bacteria is an example of a 

a)

producer

b)

consumer

c)

decomposer

9.

Which includes an order of organization of multicellular organisms from smallest to largest?

a)

tissues, cells, organs, organ systems, organism

b)

cell, tissue, organs, organ systems, organism

c)

organism, cells, tissues, organ systems, organism

d)

tissues, cells, organs, organ sytems, organism

10.

Trees in a rainforest are dependent on many nonliving resources for srvival. The table shows the heights of several trees found in a rainforest ecosystem.
The nonliving resource the trees are most likely competing for is...

Los árboles en un bosque tropical dependen de muchos recursos no vivos para sobrevivir. La tabla muestra las alturas de varios árboles encontrados en un ecosistema de bosque tropical.

El recurso no vivo por el cual es mas probable que compitan los árboles es...​ (a)  

Choose from the below words

Sunlight/Luz del sol

Food/Alimento

Wind/Viento

Water/Agua

11.

Match the words to the photo

*not all words will be used!

12.

The fungi is a?

a)

Producer

b)

Consumer

c)

Decomposer

13.

The pine tree is a?

a)

Producer

b)

Consumer

c)

Decomposer

14.

A consumer that hunts is called:

a)

a producer.

b)

an omnivore.

c)

a predator.

d)

a herbivore.

15.

A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

16.

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

a)

commensalism

b)

mutualism

c)

parasitism

d)

predation

17.

Remoras attach themselves to a shark’s body. They then travel with the shark and feed on the leftover food scraps from the shark’s meals. The relationship neither harms nor benefits the shark. 

a)

parasitism

b)

commensalism

c)

mutualism

18.

A relationship between two organisms in which both organisms benefit. 

a)

Mutualism 

b)

Competition

c)

Parasitsm 

d)

Commensalism 

19.

Use the diagram answer the question.
What is a fitting description for this diagram?

a)

Food Chain

b)

Ecosystem

c)

Food Web

d)

Biotic and Abiotic Factors

20.

Use the diagram to answer the question.
The Mayfly is a food source for which 3 organisms?

a)

Frog, Dragon Fly and snake

b)

Frog, trout and dragon fly

c)

Frog, salamander and trout

d)

Frog and phytoplankton

21.

How many predators does the Grasshopper have?

a)

1

b)

2

c)

3

d)

4

22.

What is the basic unit of life in all living organisms?

a)

Cell

b)

Tissue

c)

Organ

d)

Organism

23.

Which of the following is an example of a unicellular organism?

a)

Human

b)

Dog

c)

Amoeba

d)

Tree

24.

In a food chain, which organism is typically at the top?

a)

Producer

b)

Primary Consumer

c)

Secondary Consumer

d)

Apex Predator

25.

Which process do plants use to convert sunlight into energy?

a)

Respiration

b)

Photosynthesis

c)

Digestion

d)

Transpiration