PLEASE ANSWER ASAP Now that he's 75, years old grandpa Joe seems to catch every cold or stomach virus that goes around. Which of the following is the best explanation for this?

A.) His immune system does not work the way it used to.

B.) He is less able to absorb some important nutrients.

C.) His kidneys are less efficient at filtering waste.

D.) His genes make him prone to illness.​

Autolysis is a process in which damaged or dying cells digest themselves via reactions catalyzed by their own digestive enzymes duo to rupture of a specific organelles. which organelle do you think is involved in autolysis? explain

In some states, medical marijuana is legal. this means that people who need to take marijuana because of a medical condition may take it only with approval from the doctor. however, officers still advise these people not to drive while under the influence.what is the main reason for this? they would become dangerous to themselves and other people.they would not able to read and follow street signs.they would not be capable of staying in only one lane.they would become dangerous to wildlife that may be present.

What is the longest you should ice the injured area at one time? a. 10-20 minutes b. 30-60 minutes c. 1-2 hours d. as long as you want