Which of the following is an example of cell specialization? O A skin cell that helps form a barrier around an organism
O A red blood cell that carries oxygen throughout an organism.
O A branching nerve cell that transmits messages.
O All of the choices are examples of cell specialization

Acar company is testing seatbelts using crash test dummies. the company finds that when cars come to a sudden stop, the crash test dummies' bodies continue to move forward. the seat belt keeps the crash test dummies from hitting the back of the seat in front of them. why do the crash test dummies' bodies continue to move forward even though the car stopped? a. the friction opposing their bodies' movement keeps them in motion. b. the inertia of their bodies keeps them in motion. c. the forward acceleration of the car keeps them in motion. d. the gravity pulling on the car keeps them in motion.

Each hereditary trait corresponds to

Amines amides and amino acids are categories of