Part 1:

Census of the ocean

Watch this video and answer the following questions:

– How many species are their estimated to be in the ocean?
– What does the phrase “from salting to exhausting” mean?
– Where are the most diverse areas in the ocean? Why do you think this is so?

Part 2:

COTS Crisis
Watch the video and answer the questions:

– What Phylum is the COTS, and how many legs does it have?

– How do Starfish eat? What and how much do COTS eat?

– How are outbreaks of COTS produccixed and how can they be controlled