You looked at a slide similar to this. What was it a slide of? Zooplankton What is the organism that the “arrow” is pointing to? A copepod.

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Presentation transcript:

You looked at a slide similar to this. What was it a slide of? Zooplankton What is the organism that the “arrow” is pointing to? A copepod

Identify this organism This is a copepod which is an abundant component of zooplankton

Why are organisms like this referred to as “cows of the sea”? Copepods are major grazers of phytoplankton

Identify this organism Diatom

What are the shells or tests of these phytoplankton made of? What are these organisms? SiO 2 or Glass Diatoms

These organisms have a large oil filled vacuole. They also have chloroplasts. Are they an example of phytoplankton or zooplankton? What are they? They are capable of photosynthesis thus they are phytoplankton. Diatoms

How do these diatoms maintain their position close to the ocean surface so that they get plenty of sunlight for photosynthesis? They have oil filled vacuoles which help them float.

Identify Structure The nucleus The nucleolus The cell membrane What’s this stuff? Cytoplasm

What are these? Unfertilized sea star eggs

Kingdom? What are these? Are they zooplankton or phytoplankton? Protista Foraminiferans Zooplankton What are the shells of these organisms made of? Calcium carbonate or limestone

Kingdom Protista Zooplankton Radiolarian Strew Note that the shells or tests are made of silica dioxide (glass)

What is the shell or test of these organisms made of? Calcium carbonate or limestone

These organisms belong to Kingdom Protista They are a type of zooplankton What is the common name of these organisms? Radiolarians What are the shells of these organisms made of? Silica dioxide or glass