Podcast
Questions and Answers
What is a unifying theme in the field of biology?
What is a unifying theme in the field of biology?
What do all organisms have in common?
What do all organisms have in common?
What allows organisms to move, grow, and reproduce?
What allows organisms to move, grow, and reproduce?
What do biologists use to make observations and pose questions?
What do biologists use to make observations and pose questions?
Signup and view all the answers
At what levels of organization do biologists study life?
At what levels of organization do biologists study life?
Signup and view all the answers
What is the primary process by which gases move passively across a surface?
What is the primary process by which gases move passively across a surface?
Signup and view all the answers
In unicellular organisms, what is typically the gas exchange membrane?
In unicellular organisms, what is typically the gas exchange membrane?
Signup and view all the answers
What is the primary surface for gas exchange in small multicellular organisms like flatworms?
What is the primary surface for gas exchange in small multicellular organisms like flatworms?
Signup and view all the answers
What is the boundary between an organism and its extracellular environment that can serve as a gas exchange surface?
What is the boundary between an organism and its extracellular environment that can serve as a gas exchange surface?
Signup and view all the answers
Why is an efficient system for gas exchange required in most living things?
Why is an efficient system for gas exchange required in most living things?
Signup and view all the answers