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levels of organization/ biology - Printable Science Worksheets 7th Grade - Wayground

levels of organization/ biology

Susan Miksa

Created by Susan Miksa

20 questions

7th Grade

Science

Updated May 2025

This Grade 7 biology worksheet gives students 20 multiple-choice questions on levels of organization in living things and the digestive processes that break down food. Students identify the cell as the basic unit, distinguish cells, tissues, organs, and organ systems, place levels in sequence, define function, and classify examples as organisms or non-organisms. The worksheet also asks students to distinguish mechanical breakdown from chemical breakdown and recognize the roles of chewing, stomach contractions, saliva, stomach acid, and peristalsis. The questions use definitions, examples, classification items, and a missing-level sequence to check whether students can apply vocabulary rather than simply recall isolated terms. It is suitable for Grade 7 biology instruction, review, independent practice, or a formative assessment after teaching biological organization and digestion. This free printable worksheet includes a complete answer key for efficient checking and feedback.

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levels of organization/ biology

Total questions: 20

Name
Class
Date
1.
peristalsis is.......

peristalsis is.......

a)

A type of current that pushes water through your system.

b)

A big section of your liver that supports food digestion.

c)

A type of disease.

d)

A wave like movement that occurs in the lining of your esophagus and intestines' which pushes food.

2.
The teeth help you breakdown food by chewing. This type of breakdown is also referred to as________

The teeth help you breakdown food by chewing. This type of breakdown is also referred to as________

a)

Mechanical breakdown

b)

Exterior breakdown

c)

Chemical breakdown

d)

Interior breakdown

3.

The stomach is a muscle with a ribbed lining that contracts and grinds to breakdown food. This type of breakdown is called __________

a)

Mechanical breakdown

b)

Exterior breakdown

c)

Chemical breakdown

d)

Interior breakdown

4.

The sylvia or spit inside your mouth acts as a type of breakdown referred to as________

a)

Mechanical breakdown

b)

Exterior breakdown

c)

Chemical breakdown

d)

Interior breakdown

5.
The acid inside your stomach breaks down food through______.

The acid inside your stomach breaks down food through______.

a)

Mechanical breakdown

b)

Exterior breakdown

c)

Chemical breakdown

d)

Interior breakdown

6.

A ________ is the smallest unit of structure and function in a living thing.

a)

Organ

b)

Organ System

c)

Tissue

d)

Cell

7.

Tissue is made up of a group of similar _____ working together.

a)

Organs

b)

Organisms

c)

Organ Systems

d)

Cells

8.

An organ is made of different _______working together to do a special job.

a)

Organ

b)

Organ System

c)

Tissue

d)

Cell

9.

This is an example of an organ.

a)

pancakes

b)

arteries

c)

stethoscope

d)

thermometer

10.

An organ system is made of many ________working together to perform a special function.

a)

Organs

b)

Organism

c)

Organ System

d)

Cells

11.

What does function mean?

a)

A goal

b)

A guess

c)

A job

d)

A form of punctuation that goes on the end of a runon sentence.

12.

An _________ is a living thing that carries out its own life activities.

a)

Organ

b)

Organism

c)

Organ System

d)

Cell

13.

Which is NOT an example of an organism?

a)

A tennis ball

b)

A frog

c)

A flower

d)

A dog

14.

Which fills in the missing spot:

Cell - Tissue - ? - Organ System

a)

Mechanical breakdown

b)

Peristalsis

c)

Organ

d)

Organism

15.

Which is NOT considered a Organ System?

a)

Excretory

b)

Integumentary

c)

Paleontology

d)

Circulatory

16.
Brain, Lungs, Heart, Liver and Stomach are all _______.

Brain, Lungs, Heart, Liver and Stomach are all _______.

a)

Organs

b)

Organ Systems

c)

Tissue

d)

Cells

17.
Excretory, Respiratory, Digestive, Nervous and Skeletal are all______.

Excretory, Respiratory, Digestive, Nervous and Skeletal are all______.

a)

Organs

b)

Organ Systems

c)

Tissue

d)

Cells

18.

The largest organ in the human body is the_______.

a)

Tissue

b)

Cell

c)

Skin

d)

Teeth

19.
Plant cells, Animal cells, Tissue cells and muscle cells are all types of ______.

Plant cells, Animal cells, Tissue cells and muscle cells are all types of ______.

a)

Organs

b)

Organ systems

c)

Tissue

d)

Cells

20.

What is missing in the ordered list:

Cell - Tissue - Organ - Organ System - ?

a)

Organism

b)

Organ

c)

Organ system

d)

Tissue

WaygroundAnswer Key

levels of organization/ biology

Total questions: 20

1.
d)

A wave like movement that occurs in the lining of your esophagus and intestines' which pushes food.

2.
a)

Mechanical breakdown

3.
a)

Mechanical breakdown

4.
c)

Chemical breakdown

5.
c)

Chemical breakdown

6.
d)

Cell

7.
d)

Cells

8.
c)

Tissue

9.
b)

arteries

10.
a)

Organs

11.
c)

A job

12.
b)

Organism

13.
a)

A tennis ball

14.
c)

Organ

15.
c)

Paleontology

16.
a)

Organs

17.
b)

Organ Systems

18.
c)

Skin

19.
d)

Cells

20.
a)

Organism

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FAQs

What does this levels of organization biology worksheet cover?

This Grade 7 worksheet uses 20 multiple-choice questions to assess levels of biological organization, including cells, tissues, organs, organ systems, and organisms. It also asks students to distinguish mechanical from chemical digestion and identify processes such as chewing, stomach contractions, saliva action, stomach acid, and peristalsis, applying definitions and completing a cell-to-organ-system sequence.

How can I use this worksheet to teach levels of organization and digestion?

Introduce the organization hierarchy with a simple cell-to-tissue-to-organ-to-organ-system sequence, then have students explain what each level does before assigning the matching multiple-choice items. For the digestion questions, ask students to sort examples such as chewing, stomach movement, saliva, and stomach acid into mechanical or chemical breakdown and justify each choice before completing the worksheet.

What mistakes should I watch for on this biology worksheet?

Students may confuse the order of cell, tissue, organ, and organ system, or select an organ when a question asks for the larger group made from organs. They may also classify chewing or stomach contractions as chemical breakdown, overlook that saliva and stomach acid are identified as chemical breakdown in this worksheet, or confuse peristalsis with a disease or another digestive term.

How do I assign and grade this biology worksheet?

You can assign this worksheet as a printable PDF or as a digital quiz on Wayground. It includes a complete answer key, and printable submissions can be graded by scanning student work with the Wayground for Teachers app. The printable format also supports schools that are reducing screen time.

How can I differentiate this levels of organization worksheet for my students?

Use the worksheet’s Advanced Settings to adjust font spacing or font size so the 20 multiple-choice questions and answer choices are easier to read. You can also enable a dyslexia-friendly font or translate the worksheet into another language, which can support access to terms such as peristalsis, tissue, organ, and chemical breakdown.

Where can I find more worksheets like this on Wayground?

Wayground offers a broad collection of free printable worksheets and practice problems across subjects, with downloadable PDFs and answer keys to help students master essential skills and concepts. Browse more resources at https://wayground.com/en-us/worksheets.

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