science 1st period

the outside boundary of the cell

is the control center that directs the cell's activities and contains the information that determines the cell's form and function

the material within a cell apart from the nucleus : is made of a clear, jellylike substance containing many cell structures called organelle

a group of similar cells that perform the same function

a body tissue that carries electrical messages back and forth between the brain and every other part of the body

a tissue that makes body partsmove

a tissue that provides support for your body and connects all its parts

a tissue that protects the delicate structures that lie beneath it

a structure composed of different kinds of tissue

a group of organs that work together to perform a major function

the body tendency to keep an internal balance

is the reaction of your body to potentially threatening,challenging, or disturbing eventsg

your frame work or all the bones in. your body

your backbone

is a place in the body where two bones come together

a strong connective tissue that holds bones together in movable joints

covers the ends of the bones and keep them from rubbing against each other