Your body shivers when you are cold. This is because of the concept of...

• homeostasis
• heredity
• energy metabolism
• cellular organization

Tags

NGSS.HS-LS1-3

Living things are made up of units called

• DNA

• Cells

• Homeostasis

• Seeds

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Living things are based on a universal genetic

code. What molecule is responsible for that code?

• RNA

• Lipid

• Protein

• DNA

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-1

The smallest unit of life is a(n)

• atom
• cell
• snail

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which of the following are in the correct order, from smallest to greatest?

• Bone cell, Human, Skeletal system, Bone, and Bone tissue

• Bone cell, Bone tissue, Bone, Skeletal system, and Human

• Bone cell, Bone, Bone tissue, Skeletal system, and Human

• Bone cell, Skeletal system, Human, Bone tissue, and Bone

What is the main function of the respiratory system?

• to provide oxygen and remove carbon dioxide from the body

• o break down food and absorb nutrients

• to remove oxygen from the body and deliver carbon dioxide

The circulatory system works with the ___________ system to provide our body with oxygen and get rid of CO2 (carbon dioxide).

• respiratory

• digestive

• muscular

• skeletal

Arteries carry oxygenated blood away from the heart.

• True

• False

Veins carry deoxygenated blood back to the heart.

• False

• True

The main function of the circulatory system is 

• To give the body structure and support
• Excrete waste
• transport blood, nutrients, and gases throughout the body
• to transport messages from the body to the brain