Noun

community and interactions of living and nonliving things in an area.

fossil fuel
Noun

coal, oil, or natural gas. Fossil fuels formed from the remains of ancient plants and animals.

kelp forest
Noun

underwater habitat filled with tall seaweeds known as kelp.

marine ecosystem
Noun

community of living and nonliving things in the ocean.

population
Noun

total number of people or organisms in a particular area.

sea otter
Noun

marine mammal with thick fur native to the Pacific Ocean.

sea star
Noun

marine animal (echinoderm) with many arms radiating from its body. Also called a starfish.

sea urchin
Noun

marine animal (echinoderm) with a circular, spiny shell.