Marine Bio Last Minute Studying

Virus

A tiny, nonliving particle that invades and then reproduces inside a living cell.

Protist

composed of eukaryotes that are not classified as plants, animals, or fungi

Protozoan

An animal-like protist

Bacteria

single-celled organisms, prokaryotes, break down detritus and DOM, some produce sulfur in anaerobic environments, some chemosynthetic/chemoautotrophic

archaea

Domain of unicellular prokaryotes that have cell walls that do not contain peptidoglycan, found all over including extreme environments

diatoms

A unicellular photosynthetic alga with a unique glassy cell wall containing silica, creates silicious ooze on seafloor, some produce domoic acid toxin that can bioaccumulate

dinoflagellates

Group of protists that form "blooms", can be toxic. make up phytoplankton and can be bioluminescent. They generally have two flagella, half are heterotrophic and the other half are photosynthetic

cryptophytes

Unicellular, eukaryotic members of the phytoplankton that have two flagella and no skeleton

silicoflagellates

unicellular and eukaryotic members of the phytoplankton that have a star-shaped silica skeleton

coccolithiophorids

unicellular algae, eukaryotic, button like ornamented structures called coccoliths, calcium carbonate

foraminiferans

aquatic protists that secrete a hardened shell containing calcium carbonate, found in benthic environment

radiolarians

A protist, usually marine, with a shell generally made of silica and pseudopodia that radiate from the central body, commonly form colonies

ciliates

A group of protozoans that move by waving tiny, hair-like organelles called cilia.

fungi

Kingdom composed of heterotrophs; many obtain energy and nutrients from dead organic matter, cell wall made of chitin

lichens

represent symbiotic relationships between a fungus and a photosynthetic partner

green algae

chlorophyll, mostly found in freshwater/terrestrial environments, found in shallow areas of variable salinity

brown algae

largest most complex group of seaweed, yellow-brown pigment called fucoxanthin, found on temperate/rocky coasts

kelp

any of various large, tough, brown seaweeds

sargassum

brown algae

red algae

phycobilin pigments, most diverse group of algae, some deposit calcium carbonate