Biology Final Review

What is the difference between qualitative and quantitative data?

Qualitative data refers to non-numeric information that describes characteristics or qualities, while quantitative data involves numeric measurements that can be counted or expressed mathematically.

Whats the difference between a control group and constants?

A control group is a set of subjects that are kept under standard conditions and are not exposed to the experimental variable, while constants are the factors that remain unchanged throughout the experiment to ensure that the results are due to the variable being tested.

Whats the difference between an independent and dependent variables?

An independent variable is a factor that a researcher controls. A dependent variable is a cause or outcome that is measured to see how the independent variable effected it.

When is a good time to use a bar graph?

When comparing multiple groups.

When is a good time to use a line graph?

When viewing changes in one data set over a period of time.

Basic unit of structure and function?

Cells

What are the most common elements in most living things?

Hydrogen, Oxygen, Nitrogen, Carbon.

What is the difference between adhesion and cohesion?

Cohesion is the attraction between like molecules (e.g., water to water), causing them to stick together, while adhesion is the attraction between different molecules (e.g., water to glass), making them cling to each other or another surface. Think of cohesion as "sticking to itself" and adhesion as "sticking to something else". 

What does it mean to say that water is a universal solvent?

Water is known as the 'universal solvent' because it is capable of dissolving more substances than any other liquid due to its polar nature.

What is an atom that gains an electron called?

A cation.

What is an ion that loses an electron called?

An anion.

What is the average PH value of water?

7

What is a substance that speeds up the rate of a chemical reaction called?

A catalyse?