biology help please??????????????

Biology
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describe the following groups:  diatoms, dinoflagellates, green algae, red algae, brown algae, euglenoids, ciliates, amoeboids, and zooflagellates.

Sep 1st, 2015

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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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Sep 1st, 2015

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