Hair and Fiber Analysis Forensics

In a classroom activity about hair structure, Oliver compares a strand of hair to a pencil. He explains that just like a pencil has paint on its surface, a certain part of the hair serves a similar protective function. Which part of the hair is comparable to the pencil's paint?

• Follicle

• Cortex

• Cuticle

• Medulla

In a classroom activity about hair structure, Liam compares a strand of hair to a pencil. Which part of the hair does Liam say corresponds to the wood of the pencil?

• Follicle

• Cortex

• Cuticle

• Medulla

In a classroom discussion about human hair structure, Jackson compares the hair to a pencil. He asks Rohan, which structure corresponds to the lead of the pencil?

• Follicle

• Cortex

• Cuticle

• Medulla

During a biology class, Ethan observed a slide under the microscope showing a medulla pattern in a hair sample. He described the pattern as being not solid but having breaks at regular intervals. How is this medulla pattern called?

• fragmented 

• continuous

• interrupted

Abigail, Avery, and Noah are investigating a crime scene for their school project. They come across some trace evidence. What does this term 'trace evidence' mean in their context?

• small but measurable amounts of physical or biological material found at crime scene

• the tough outer covering of a hair composed of overlapping scales

• the centrel core of a hair fiber

• the actively growing root or base of hair containing DNA and living cells

During a forensic science class, Liam examines a hair sample under the microscope. He asks Maya, 'What kind of medulla is this?'

• Fragmented

• Continuous

• Interrupted/Intermittent

• There is no medulla - Absent

Jackson is examining a hair sample under the microscope in his biology class. He turns to Abigail and asks, 'What kind of medulla is this?'

• Fragmented

• Continuous

• Interrupted/Intermittent

• There is no medulla - Absent

During a forensic science class, Kai examines a hair sample under the microscope and asks Priya, 'What kind of medulla is this?'

• Fragmented

• Continuous

• Interrupted/Intermittent

• There is no medulla - Absent

During a forensic science class, Arjun stated that hair always contains DNA. Is this statement true?

• true

• false

James found a strand of hair in his science lab. Should he categorize it as human or nonhuman hair?

• human 

• nonhuman