What is the dangling thing in the back of your throat called?

your uvula

Explanation:

the flesh that hangs in the back of your throat -- helps you swallow and speak. But you can run into problems if it's larger than normal. A swollen uvula can cause a sore throat, redness, trouble breathing or talking, or a choking feeling.

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.

fluid balance is an aspect of the homeostasis of organisms in which the amount of water in the organism needs to be controlled, via osmoregulation and behavior, such that the concentrations of electrolytes (salts in solution) in the various body fluids are kept within healthy ranges. the core principle of fluid balance is that the amount of water lost from the body must equal the amount of water taken in.