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sem. 1
vocab
| Question | Answer |
|---|---|
| Classification | grouping of organisms or objects based on a set of criteria that helps organize communicate and retain information. |
| Taxonomy | branch of biology that identifies names and classifies species based on their natural relationships |
| Phylogeny | evolutionary history of a species. |
| Binary Fission | asexual form of reproduction used by some prokaryotes in which a cell divides into two gentically identical cells. |
| Conjugation | form of reproduction used by some prokaryotes in which the prokaryotic cells attach to each other and exchange genetic material. |
| Lytic Cycle | viral replication process in which genetic material of the virus enters the host cells cytoplasm the cell replicates the viral dna and rna and the host cell is instructed to manufacture capsids and assemble new viral particals which then leave the cell. |
| Lysogenic Cycle | viral replication process in which viral dna inserts into the hosts cells chromosome may remain dormant and later activate and instruct the host cell to produce more viruses. |
| Retrovirus | rna virus such as hiv with reverse transcriptase in its core. |
| Protozoan | heterotrophic unicellular animal like plant. |
| Alternation of Generation | reproductive life cycle that alternates between a diploid sporophtye generation and a haploid gametophyte generation. |
| Chitin | tough flexible polysaccharide in the exoskeletons of insects and crustaceans and in fungal cell walls. |
| Hypha | threadlike filament that makes up the basic structural unit of a multicellular fungus. |
| Mycelium | complex netlike mass made up of branching hypae. |
| Spore | reproductive haploid cell with a hard outer shell that forms a new organism without the fusion of gametes and is produced in the asexual and sexual life cycle of most fungi and some other organisms. |
| Vascular Tissue | specialized tissue that transports water food and other substances in vascualar plants and can also provide structure and support . |
| Cotyledons | seed structure that stores food or helps absorb food for the sporophyte of vacular seed plants. |
| Stomata | openings in the outer cell layer of leaf surfaces and some stems that allow the exchange of water carbon oxygen and othe gases. |
| Tropisms | response to an external stimulus in a specific direction |
| Guard Cell | one of a pair of cells that function in the opening and closing of a plants stomata by changes in their shape. |
| Transpiration | process in which water evaporates from the insdie of leaves to the outhside stomata |