Select the correct answer. Prolonged and constant use of tobacco can weaken the user's immune system and increase the risk of many diseases.
Which disease makes the air sacs in the lungs less elastic, reducing their ability to absorb oxygen?
OA
chronic bronchitis
O B.
emphysema
O C.
lung cancer
O D. oral cancer

Which action can lead to intentional injuries? a. burning your in hot water b. avoiding illegal drugs c. getting in a bike crash d. being hurt in a robbery (! this is for apex if any can relate : ( .)

How much does steven fortenberry go to the !

Which of the following represents a difference between viruses and viroids? a) viruses infect many types of cells, whereas viroids infect only prokaryotic cells.b) viruses have capsids composed of protein, whereas viroids have no capsids.c) viruses have genomes composed of rna, whereas viroids have genomes composed of dna.d) viruses cannot pass through plasmodesmata, whereas viroids can.