Science Vocabulary, Quiz #2

The _________________ gives your body form and helps to protect your organs.

• skeletal system

• cell wall

• organ

• tissue

The _______________ is center and most important part of a cell.

• nucleus

• brain

• protist

• organ

The _______________________ uses your lungs to exchange oxygen between your body and the environment around it.

• respiratory system

• circulatory system

• air

• oxygen

Heart, lungs, and your brain are examples of an ____________ inside your body.

• organs

• tissue

• bones

• cells

___________ is a jelly-like material in between the cell membrane and the nucleus that helps to keep us healthy.

• cytoplasm

• cell membrane

• tissue

• nucleus

Blood and skin are examples of _______________ that work together to perform a certain function.

• tissue

• organs

• organ system

• circulatory system

The breaking down of food into chemical nutrients inside your body is done with the __________________.

• digestive system

• stomach

• cytoplasm

• protist

Organs working together to do a job for the body is an _______________.

• organ system

• organs

• tissue

• protist

This is the most important system in our body because it pumps blood. _________________.

• circulatory system

• heart

• lungs

• nucleus

A _____________ is a single or simple cell with a nucleus.

• protist

• organ

• tissue

• digestive system