What is the basic structure and function of all living things called?
What is a cell.
10
Nutrients move from the digestive system into the blood by traveling through _________.
What is villi.
10
Other bands of tissues called _________ attach bones to each other.
What is ligaments.
10
Oxygen enters the body through the a) digestive system b) respiratory system c) circulatory system d) excretory system
What is b) respiratory system
100
What is a thin cell covering that hold the parts of a cell together called?
What is a cell membrane.
100
What are organs that work together to perform a specific function called?
What is a system.
100
The circulatory system transports blood through various-sized tubes called arteries, veins, and _________.
What is capillaries.
100
Bones are attached to each other in places called _________.
What is joints.
100
Plants and animals grow when cells a) reproduce b) release energy c) get rid of wastes d) repair themselves
What is a) reproduce
1000
What is the movement of water and dissolved materials through a cell membrane called?
What is an osmosis.
1000
What is the process by which particles of a substance move from an area where there are many particles of the substance to an area where there are fewer particles of the substance called?
What is diffusion.
1000
The smallest tubes end in tiny sacs called _____________.
What is alveoli.
1000
Tough bands of tissue called _______ attach bones to muscles.
What is tendons.
1000
An animal's skin is an example of a) connective tissue b) muscle tissue c) epithelial tissue d) nervous tissue
What is c) epithelial tissue
10000
What is an organelle that controls a cell's activities called?
What is a nucleus.
10000
What are specialized cells that transmit and receive nervous system signals called?
What is neurons.
10000
In the body's excretory system, urea and water travel from the blood into the kidneys and diffuse into _________.
What is nephrons.
10000
Which of the following allows water to flow into the roots of plants? a) cytoplasm b) mitochondria c) osmosis d) vacuoles
What is c) osmosis
10000
Oxygen travels to every cell in the body through the a) respiratory system b)circulatory system c) digestive system d) excretory system
What is b) circulatory system
100000
What is the jellylike substance that contains many chemicals to keep a cell functioning called?
What is cytoplasm.
100000
Some type of nerve cells called _________ can detect conditions in the body's environment.
What is receptors.
100000
Bones have a hard outer membrane and a soft center that contains __________.
What is bone marrow.
100000
Osmosis is one kind of a) active transport b) organelle c) carrier d) diffusion
What is d) diffusion
100000
Which of the following is a ball and socket joint? a) knee b) elbow c) hip d) toe