6 Questions
What are eukaryotes that are neither plants, animals, nor fungi called?
Protists
Which group of protists includes diatoms and brown algae?
Chromalveolata
What structure do brown algae have to attach to hard bottoms?
Holdfast
Which protists produce 1/5 of the oxygen on Earth?
Diatoms
What distinguishes forams among protists?
Calcium carbonate tests
Which protists change their shape using pseudopods?
Amoeba
Study Notes
Protists
- Eukaryotes that are neither plants, animals, nor fungi are called protists.
Protist Groupings
- Diatoms and brown algae are classified as stramenopiles.
Brown Algae Characteristics
- Brown algae have holdfasts, which are structures that attach them to hard bottoms.
Oxygen Producers
- Phytoplankton, a type of protist, produce 1/5 of the oxygen on Earth.
Foraminifera (Forams)
- Forams are distinguished by their shells, which are made of calcium carbonate.
Amoeboid Protists
- Amoebas are protists that change their shape using pseudopods.
Test your knowledge on the origin and diversification of eukaryotes, focusing on unicellular eukaryotes such as protists belonging to different groups like Excavata and Chromalveolata. Explore the key characteristics and examples of these diverse organisms discussed by Dr. Ivonne Bejarano.
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