Vocab Set 7

Front

What are single-celled organisms that lack a nucleus called?

Back

Bacteria

Front

Which system is responsible for moving blood and oxygen throughout the body?

Back

Circulatory system

Front

What is the smallest type of infectious agent that reproduces inside a living cell?

Back

Virus

Front

Which system takes in food, absorbs nutrients, and eliminates waste?

Back

Digestive system

Front

What system is responsible for removing waste from the body and balancing salt and water?

Back

Excretory system

Front

What is the condition called when an organism’s internal environment is kept stable?

Back

Homeostasis

Front

Which system protects the body from harmful infections? Options: Nervous system, Immune system, Digestive system, Circulatory system

Back

Immune system

Front

What system protects internal organs and provides the body with mobility?

Back

Musculoskeletal system

Front

Which system controls all the activities and functions of the body?

Back

Nervous system

Front

What is a living thing called?

Back

Organism