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Science 1 (C)
Science - Ch. 1
Question | Answer |
---|---|
A connective tissue that produces red and white blood cells is called? | bone marrow, the soft center inside a bone |
Where do bones meet? | at joints |
At joints, bones are attaced to each other and? | muscles |
A type of joint that moves in a circular motion. | A ball and socket, like the hip joint (joystick) |
Tough bands that attach MUSCLES TO BONES | tendons |
Bands of connective tissue that attach BONES TO BONES | ligaments |
Specialized cells that can receive and transmit signals | neurons |
Nerve cells that detect conditions in the body's environment | receptors |
Plants and animals grow bigger when | they reproduce |
A human body contains how many miles of blood vessels? | About 70,000 miles |
What is the basic unit of structure and function of all living things? | the cell |
What do cells do? | they work together to form basic life processes that keep an organism alive |
Every cell is enclosed by a thin covering called the? | cell membrane - which holds the cells together |
What determines the cells activities? | the nucleus |
What is between the cell membrane and the nucleus? | the cytoplasm - a jelly like substance containing chemicals to keep the cell functioning |
What is the process of diffussion? | a particle of a substance moves from an area where there are a lot of the substance to an area where there are fewer particles of the substance |
Where does diffusion of materials into and out of cells take place? | through the cell membrane |
What is osmosis? | the movement of water and dissolved material through cell membranes |
Cells work together to perform a specific function, which is? | to form a tissue |
What are the 4 kinds of tissue? | muscles, nervous, connective, and epithethial |
What are tissues that work together called? | organs |
Organs that work together to perform a function form a? | system |