Which of the following is considered the most advanced animal phylum.

Consider the open ocean community. Where is most of the ocean’s total biomass concentrated?

Hypoxic, or dead zones, in the ocean is caused by?

Explain the Greenhouse Effect – including what causes it and why it is a problem.

Which phylum has the largest number of species?

What happens when the ocean absorbs more carbon dioxide?

How much of the Earth’s surface is covered by the world’s ocean?

Sharks, the vertebrates that have a skeleton made of cartilage, belong to which group?

Choose the pair of gases required by nearly all marine organisms to stay alive.

Identify the phylum that contains jellyfish.