Biology Introduction and 4.1-4.3

Front

A claim is ______________________________.

Back

a statement or conclusion that answers the original question or problem.

Front

Find evidence that best supports the claim: Dogs make good pets.

Back

When people pet dogs, their brains release a chemical called oxytocin which reduces anxiety.

Front

If I dissolve carbon dioxide in water, what is the solvent?

Back

Water.

Front

The root geo- means

Back

land/earth.

Front

The cell membrane is selectively permeable, which means...

Back

Certain things can enter while others cannot.

Front

What is the function of the cell membrane?

Back

To protect the cell and control what enters and leaves.

Front

What is osmosis?

Back

The movement of water across a selectively permeable membrane.

Front

Define diffusion.

Back

The process by which molecules spread from areas of high concentration to areas of low concentration.

Front

What is a hypothesis?

Back

A testable prediction about the relationship between variables.

Front

What is the scientific method?

Back

A systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.