What does it mean to be a pathogenic organism?

a. it provides vitamins and nutrients.

b. it is disease causing.

c. it is unable to live in oxygen.

d. it breaks down dead matter

i need it fast

one characteristic that is shared by all is a soft body. many

of these invertebrate animals also have an outer shell to protect their

body. oysters, clams, snails, and mussels are all mollusks. so are octopuses, squids, and slugs. mollusks live on land and in freshwater.