A chemical messenger that travels through the blood and carries information to certain cells.
What is a hormone?
100
3 features all cells have in common.
What are the nucleus, cell membrane, and cytoplasm?
100
This system carries oxygen in the body.
What is the circulatory system?
100
Infectious diseases are caused by ...
What are organisms or viruses?
100
Organ system that transports food, oxygen, and wastes via the bloodstream throughout the body.
What is the circulatory system?
200
The gel-like material that surrounds the internal parts of a cell.
What is the cytoplasm?
200
What does the plant cell have that the animal cell does not?
What is a cell wall and chloroplasts?
200
What does the endocrine system do?
sends chemical messengers to cells throughout the body
200
Noninfectious diseases are caused by...
What is a malfunction of an organ system?
200
Structure that has a specific job within the cell.
What is an organelle?
300
The part of the plant where food is made.
What is the chloroplast?
300
The cell's control center.
What is a nucleus?
300
What organ systems help you lift a chair?
musculoskeletal system and the nervous system
300
What is the body's first line of defense?
What is skin, tears, earwax, saliva, and mucus?
300
The organ system that controls movement and other organs.
What is the nervous system?
400
A type of diffusion that allows water to pass across a membrane.
What is osmosis?
400
Provides energy for the cell.
What is the mitochondria?
400
Explain the relationship between tissues, organ systems, cells, organisms, and organs.
A group of cells make up a tissue. A group of tissues make up an organ. A group of organs make up an organ system. A group of organ systems make an organism.
400
What is the body's third line of defense?
What is the immune system?
400
A group of cells with a common structure and function.
What is a tissue?
500
The process that spreads substances through a gas or liquid.
What is diffusion?
500
Provides structure to the cell.
What is the cell membrane?
500
This organ system removes liquid wastes from the body.
What is the urinary system?
500
What is the body's second line of defense?
What are phagocytes? (ex. inflammation)
500
The organ system that fights disease and foreign agents.