something

what is 4+4+4+4

• 12
• 16
• 8
• 4

what is an example of citris

• orange
• metal
• rock 
• wood

a crab is a _________

• crustation
• decapod 
• female
• male

who were the first people to get to north america

• cristopher columbus
• vikings
• eruasians
• none of the above

The smallest units or parts of living things; the body's building blocks.

• cells
• organs
• tissues
• system

Your large and small intestines are part of this body system.

• nervous
• digestive
• muscular
• skeletal

Your body systems work separately and do not effect each other.

• true
• false

Organs are body parts that have specific jobs.  Your body systems are made up of organs.

• true
• false

Nourishment; something needed for life and growth.

• systems
• nutrition
• vaccinations
• tissues

Nonliving substances found in nature.

• minerals
• fats
• organs
• cells