describe the following groups: diatoms, dinoflagellates, green algae, red algae, brown algae, euglenoids, ciliates, amoeboids, and zooflagellates.
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Diatoms are algae with transparent cell walls constructed of
hydrated silica. Dinoflagellates are a large compounds of flagellate protists
comprising of the pphylum dinoflagellata.
Green algae are a large group of algae consisting of
charophyte and chlorophte algae which are placed in separate divisions.
Red algae are an old group of eukaryotic algae. It is also
one of the largest containing large amounts of marine algae and multicellular
Brown algae is a large group of marine multicellular algae. The
include seaweeds of Northern Hemisphere waters which are colder.
Euglenoids are large groups of flagellates. They are
exacavate eukaryotes of phylum euglenophyta. Their structure is more typical of
the group. Commonly found in fresh water rich in organic materials.
Ciliates are a large group of protozoans constructed by the
presence of hair-like organelles known as cilia made in the shape of eukaryotic
flagea. They are shorter and present in large numbers.
Amoeboid is a type of a cell which has the ability to alter
its shape by extending and retracting pseudopods. They are found in a lineage
of eukaryotic organisms.
Zoooflagellates are single celled eukaryotes that form
symbiotic relations with other organisms. Some are parasitic and can cause
diseases. They have many flagella but lack cell walls
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