This is the number of characteristics required to categorize something as living

This is the basic unit of life

These are the two types of reasoning used by scientists

True or False: Darwin was the first person to ever propose evolution

This "theory" is based on the idea that
1. all organisms are composed of cells
2. Cells are the basic units of life
3. All cells come from preexisting cells

All living things are composed of these

This is the collective name for things like the mitochondria, nucleus, and endoplasmic reticulum

This is the systematic approach by which scientists gain an understanding of the natural world

This is the name of the book Darwin is most associated with

The name for the abbreviation DNA

Living things are able to do this after eating or photosynthesis

True or false : Viruses are living things

This must be tested in order to determine validity

The finches that darwin studied were located on this continent

This is what structure determines

An example of this characteristic of living things is how our internal body temperatures stay the same when we go outside in the cold.

This basic unit makes up all molecules

An experiment is designed to only test ___ variable(s) at a time

This is another way to phrase the term "evolution"

This is a discrete unit of cellular information

This is a characteristic of living things that involved DNA

Organs are made up of these

This is not a guess, but the most certain explanation for something

This evidence for Darwin's theory goes back about 3.5 billion years

The is the entire set of DNA instructions