11 terms

Marine Bio - Mod 3

Vocab for Module #3 in Exploring Creation with Marine Biology by Sherri Seligson
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Bacteria
Prokaryotic, single-celled, microscopic organisms
Decomposers
Organisms that break down dead organic matter into smaller molecules
Chemosynthesis
the making of organic material from inorganic substances using chemical energy
Phytoplankton
Photosynthetic organsims that drift in the water
Zooplankton
tiny floating organisms that are either small animals or protozoa
Thallus
the complete body of an alga, not differentiated into true leaves, stems, or roots
Diploid cell (2n)
a cell that has chromosomes which come in pairs
Haploid cell (1n)
a cell that contains half the normal number of chromosomes (one from each pair)
Alternation of generations
a life cycle that alternates between a sexual stage (gametophyte) and an asexual stage (sporophyte)
Symbiosis
a close relationship between two species where at least one benefits
Lichen
an organism that results from the symbiosis between a fungus and an alga