HHS Introduction to Biology

In a scientific investigation, how many variables should be changed?

• None

• One

• As many as possible

What is biology?

• The study of matter and change

• The study of forces and motion

• The study of life

• The study of human interactions with the environment

What is the basic unit of structure and function of living things?

• atom

• molecule

• cell

• organ system

Which process gives rise to offspring?

• growth and development

• metabolism

• reproduction

• homeostasis

All living things try to maintain a stable internal environment known as

• stimulus

• response

• feedback loop

• homeostasis

What is the sum of all the chemical reactions in a cell called?

• development

• metabolism

• reproduction

• homeostasis

Which theory states that cells are the basic structural units of all organisms?

• germ theory

• cell theory

• theory of evolution

• gene theory

What is a broad explanation for events that is widely accepted as true?

• observation

• law

• hypothesis

• theory

Reproduction is the process by which living organisms:

• Give birth to others of the same kind

• Increase in size irreversibly

• Give rise to other organisms of the same kind

• Give rise to other living organisms not necessarily of the same kind

The variable the is changed on purpose is..

• Constant
• Control
• Independent Variable
• Dependent Variable