Which part of the digestive system do you think is most affected and why?​

small intestine

Explanation:

The small intestine is the most important organ of the digestive system because it carries the major digestion and absorption of digestion food. Food is exposed to several digestive enzymes in small intestine only. Ileum of the small intestine has a large surface area that helps in the absorption of digested food.

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.