No student devices needed. Know more
25 questions
__________ are the building blocks of life.
building blocks
blood
carbon dioxide
cells
A group of _______ work together to make an organ.
cells
tissues
organs
systems
A group of cells work together to make _______
cells
tissues
organs
systems
A group of _______ work together to make an organism.
cells
tissues
organs
systems
A group of _______ work together to make systems.
cells
organs
tissues
systems
What system is responsible for sending messages to and from other parts of your body and your brain.
circulatory
respiratory
excretory
nervous
What are the main parts of the circulatory system?
heart, blood, blood vessels
heart, lungs, vessels
heart, brain, vessels, nerves
brain, spine, nerves
What system is responsible for pumping blood throughout your body?
circulatory
respiratory
nervous
digestive
What are the main parts of the circulatory system?
blood, lungs, vessels
brain, heart, blood
heart, blood, vessels
brain, spine, nerves
What is the strongest muscle in your body?
eyes
upper arm
upper leg
heart
Explore all questions with a free account