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Unit 2 Biology Review

Across
A body tissue that covers the surfaces of the body, inside and out.
26 small bones that make up the backbone
Hard, dense bone tissue that is beneath the outer membrane of a bone
A group of organs that work together to perform a major function in the body.
A body structure that is composed of different kinds of tissues.
A body tissue that contracts or shortens, making body parts move.
The outside boundary of a cell.
The reaction of the body to potentially threatening, challenging, or disturbing events.
The material or protoplasm within a living cell, excluding the nucleus.
Control center of the cell
A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together
A body tissue that provides support for the body and connects all of its parts.
Down
Strong connective tissue that holds bones together in movable joints
A group of similar cells that perform the same function.
A condition in which the body's bones become weak and break easily
A place in the body where two bones come together
Layer of bone tissue having many small spaces and found just inside the layer of compact bone
the process by which an organism's internal environment is kept stable in spite of changes in the external environment.
The inner framework made up of all the bones of the body
What the skeletal system is made of.
The soft connective tissue that fills the internal spaces in bone
A body tissue that carries electrical messages back and forth between the brain and every other part of the body.
The basic unit of structure and function in a living thing.