10.
probiotics are which of the following?
1 microorganisms that live in the digestive tract
2 a dietary supplement made from yogurt
3 a natural medication used in place of antibiotics
4 all of the above

so we know the answer cannot be c because no insect or animal starts as an adult

the answer is a. a swimming larvae

because since they are sea animals they automatticaly have to know how to swim they cannot just sink to the bottom

sorry if this is the incorrect answer.