7th Grade Human Body Systems

When food is being mechanically digested, it is being

• changed into another substance

• made smaller in size

• converted into energy

• excreted from the body

The primary purpose of which human organ system is to produce hormones that regulate body functions?

• skeletal

• muscular

• circulatory

• endocrine

Which system is responsible for moving gas into and out of the body so that we can breathe?

• digestive

• endocrine

• respiratory

• nervous

The diagrams represent some respiratory structures in three organisms. The labeled structures in these organisms all have a similar function. What is the main function of the labeled structure(s) in each organism?

• circulation of blood

• digestion of food

• production of hormones

• exchange of gases

One function of the human excretory system is

• making materials that the body cells need

• removing excess heat energy and waste products from the body

• moving substances to and from body cells

• controlling the body’s responses to stimuli

The ________ and ________ are the main systems that move fluid throughout the body.

• circulatory system, lymphatic system

• immune system, circulatory system

• skeletal system, muscular system

• lymphatic system, respiratory system

Which system’s main purpose is to allow organisms to create more organisms?

• immune system

• excretory system

• reproductive system

• endocrine system

Tags

NGSS.MS-LS3-2

NGSS.MS-LS4-4

Which of the following systems helps get rid of some kind of waste?

• excretory system

• digestive system

• respiratory system

• all of the above

Which of the following systems would produce a hormone that causes bones to grow?

• integumentary system

• nervous system

• endocrine system

• lymphatic system

Why is the digestive system important?

• It carries blood through the body to bring oxygen, water and nutrients to cells.

• It changes food into molecules that cells can use for energy, growth and healing.

• It regulates the functions of all the other body systems.

• It interprets information provided by the senses and sends messages throughout the body.