7th Grade Science Human Body Systems Quiz

There are ________________ major organ systems in the human body.

• 10

• 50

• 100

• 500

The circulatory, respiratory, skeletal, muscular, digestive, excretory, reproductive, integumentary, nervous, and endocrine systems all work together in the human body to maintain homeostasis. All these systems have different functions. Which system protects the inside of the body from harmful elements in the environment?

• Circulatory

• Integumentary

• Reproductive

• Nervous

During a biology class, Abigail, Grace, and Ava were discussing the human body. They were curious to know which organ system is most directly involved in the transport of oxygen when they are running in their physical education class. Can you help them?

• Nervous

• Excretory

• Digestive

• Circulatory

During a biology class, Elijah, Daniel, and Harper were discussing the changes their bodies were going through during puberty. They concluded that the production of the increased amounts of hormones during this period is a main function of the —

• Skeletal system

• Excretory system

• Circulatory system

• Endocrine system

Which of the following is NOT a main function of the human body's nervous system?

• To create external stimuli

• To send out electrical signals

• To generate responses

• To cause reflexes

What is the primary role of the kidneys in the excretory system?

• To produce and release hormones for body regulation

• To filter waste from the blood and produce urine

• To generate and transfer hemoglobin to red blood cells

• To create and store calcium in the bones

Michael and Ava are planning to participate in a school race. They are curious to know which two body systems in their bodies will be primarily responsible for their locomotion during the race. Can you help them?

• Skeletal system and muscular system

• Nervous system and circulatory system

• Respiratory system and digestive system

• Integumentary system and excretory system

Using the illustration, which function do the bones of the SKULL mainly perform?

• They allow movement

• They produce proteins

• They protect tissues and organs

• They connect muscles to tissues

What is the primary role of the reproductive system?

• To generate and nurture offspring

• To respond to external stimuli

• To eliminate waste and detoxify the body

• To store energy in the form of fats and minerals

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

Part of a human body system is pictured. The main function of this system is to —

• control reproduction

• transport oxygen

• produce hormones

• remove waste