A fish is one fish and fish fish is two fish.
Yes, but under current law in most states they cannot get married.
Whale-small fishies-plankton- algea?
Starfish are aquatic invertebrates but are oftenly called "Echinodermata" or the class Asteroidea. Happyanswers56: Starfish are aquatic invertabrates. so it's right.
I prefer fish as the plural form, but fishes is also used.
The Fish School Phenomena
Effects of Wrong Fishing Methods
Negative Effects of Blast Fishing on the Environment
How the Dutch Fishermen Fish Sustainably