Compare and contrast freshwater biomes and marine biomes

Marine biome: is the biggest biome in the world.  This includes the 5 maine oceans (pacific, atlantic, indian, etc).  There is over 1 million species of plants. There are mollusks, fish, whales, etc.

Freshwater:is made up of lakes, rivers, ponds, etc; technically any body of water. Theycover up 20% of Earth.

Explanation:

the answer is d. chordata

igneous rocks which formed by the crystallization of magma at the surface of the earth called extrusive rocks. they are characterized by fine-grained textures because the rapid cooling at or near the surface did not provide enough time for large crystals to grow.