Blood Unit Study Guide

What can investigators use to help reconstruct a crime?

• The color of blood

• The location, distribution, and pattern of blood

• The temperature of blood

• The viscosity of blood

What type of evidence is blood considered?

• Individual evidence

• Class evidence

• Circumstantial evidence

• Direct evidence

What does a positive test for blood as presumptive evidence indicate?

• A) It confirms the identity of the substance as blood.

• B) It means the presence of the substance but is not confirmatory.

• C) It verifies the absence of the substance.

• D) It has no significant meaning.

What is the primary function of red blood cells (Erythrocytes) in our blood?

• To destroy infectious agents

• To carry oxygen to our cells

• To clot blood

• To fight infection

Which component of blood contains electrolytes, nutrients, vitamins, hormones, clotting factors, and proteins such as antibodies?

• Red Blood Cells

• White Blood Cells

• Platelets

• Plasma

What is the role of white blood cells (Leukocytes) in the blood?

• To carry oxygen

• To clot blood

• To destroy infectious agents

• To carry nutrients

Which type of blood cell is primarily responsible for blood clotting?

• Erythrocytes

• Leukocytes

• Basophils

• Platelets

How much blood does the average adult have inside their body?

• 3 liters

• 5 liters

• 8 liters

• 10 liters

When is your blood type established?

• After you are born

• Before you are born

• During adolescence

• It can change anytime during your life

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

How many genes do you inherit that determine your blood type?

• One gene from your mother only

• One gene from your father only

• Two genes, one from each parent

• Multiple genes from both parents

Tags

NGSS.HS-LS3-1