Introduction to Biology

Which is the BEST description of biology?

• the study of humans and animals
• the study of life and living things
• the study of health care
• the study of humans, plants, and animals

A possible explanation to a problem that has not yet been tested. 

• data
• theory
• hypothesis
• fact

What are the basic building blocks of life?

• Atoms
• Cells
• Tissues
• Organs

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

How many variables should be manipulated in a controlled experiment?

• 0

• 1

• 2

• 3

The subjects tested without the experimental condition, or under normal conditions. It serves as a basis of comparison.

• experimental group

• control group

• controlled variable

• homeostasis

An experiment is performed on plants to see how different liquids affect plant growth. Each plant in the experiment is given a different liquid; water, apple juice, or milk. Each plant has the same amount of soil, sunlight, and listens to the same music. In this investigation, the independent (manipulated) variable is

• The type of plant

• The amount of sunlight

• The type of music

• The type of liquid

Sabrina wants to test which brand of popcorn pops the most kernels. She picked a Giant Eagle brand, Orville Redenbacher, and PopSecret. All three bags started with the same number of kernels. She popped each for 3 minutes in the same microwave, and then counted the number of kernels left over. What is her independent (manipulated) variable?

• Number of kernels left over

• Brand of popcorn

• Number of kernels before popping

• Length of time cooking

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable
• independent variable
• data
• control group

Which of the following is NOT a characteristic shared by all living organisms?

• Ability to move
• Ability to grow and develop
• Made up of one or more cells
• Responds to stimuli

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-8

In order for something to be considered a living organism, it must display _____ of the eight characteristics of living things.

• all
• some
• one
• more than half