Biology Basics: Cell Structure

All living things are made up of cells.

Vaccines weaken or kill a specific virus, preventing future infection

Atoms of the same element can have different numbers of neutrons.

The scientific method is a linear process with a set order of steps.

Sound travels faster through solids than liquids or gases.

Which of the following is the smallest unit of matter?

During photosynthesis, plants use sunlight, water, and carbon dioxide to produce:

The process by which a liquid changes into a gas is called:

The transfer of thermal energy through direct contact is known as

The pH scale is used to measure the: