................. give structure to the body and allow it to move.

• Mouth

• Bones

• Skin

Bones are non living tissues.

• true

• false

_________ that cause movement work in pairs or opposing groups

• Bones

• Muscles

• Stomach

______________ is very hard to protect the brain

• Rib cage

• Backbone

• Skull

_____________ in the stomach help break down food.

• Chemicals

• Saliva

• Strong acids

Digestive juices produced by ___________

• liver and pancreas

• large intestine

• lungs

Tags

NGSS.MS-LS1-7

Carbon dioxide removed through the ________________.

• skin

• lungs

• kidneys

___________ is the main organ in respiratory system.

• Brain

• Lungs

• Stomach

A ___________ is a poisonous substance

• hydrogen

• toxin

• digestive juices

The kidneys remove waste from the blood using millions of tiny filters called nephrons.

• true

• false

Tags

NGSS.MS-LS1-3