PBS Unit 4

Fingerprint ridge details (as shown here) are referred to as

• minutiae

• ridge details

• loops

• patterns

The effect of type of music on heart rate was tested by a student. What is the INDEPENDENT variable in the experiment?

• heart rate

• type of music

• time

What part of the hair is represented by letter B?

• cuticle

• cortex

• medulla

• root

What part of the hair is represented by letter C?

• cuticle

• cortex

• medulla

• root

Which part of blood is responsible for carrying oxygen?

• red blood cells

• white blood cells

• platelets

Which part of blood is responsible for fighting infection?

• red blood cells

• white blood cells

• platelets

Which part of blood is responsible for clotting?

• red blood cells

• white blood cells

• platelets

What blood type is sample 2?

• A

• B

• AB

• O

In an experiment, the variable that is being measured in response to what the researcher is changing is

• the independent variable

• the dependent variable

• the hypothesis

Tags

NGSS.MS-PS2-2

Which DNA bases pair together?

• A-T

• G-A

• C-T

• T-G