Pltw Pbs

Which are included in crime scene sketches? (choose all that apply)

• time of death

• scale

• evidence

• cause of death

• location

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 A?

• cuticle

• cortex

• medulla

• root

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

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

• minutiae

• ridge details

• loops

• patterns

What fingerprint ridge pattern is seen here?

• whorl

• loop

• arch

• fork

What fingerprint ridge pattern is seen here?

• whorl

• loop

• arch

• fork

What fingerprint ridge pattern is seen here?

• whorl

• loop

• arch

• fork

Which part of blood is responsible for carrying oxygen?

• red blood cells

• white blood cells

• platelets