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29 Cards in this Set
- Front
- Back
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Biodiversity |
The number and variety of species and ecosystems on earth |
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Species |
All organisms capable of breeding freelywith each other under natural conditions |
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3 Ambiguous cases of species |
- Have infertile offspring - reproduce asexually - Hybridization |
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3 types of diversity |
- genetic diversity - species diversity - structural diversity |
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4 reasons bio diversity is important |
- food - medicine - bio tourism - impact on environment (faster extinction rate) |
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Morphological Species Concept |
- determine species based on physical characteristics |
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Biological Species Concept |
- determine species based on ability to interbreed |
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Phylogenetic Species Concept |
-determine species based on common ancestors |
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Evolution |
the scientific theory thatdescribes changes in a population over time andtheir shared ancestry. |
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phylogenetic tree |
a tree that shows the evolutionary past of animals |
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Clade |
group of animals on a phylogenetic tree sharing a common anestor |
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4 reasons the classification of species is important |
Drugs – narrow your search for pharmaceuticals Disease – trace the transmission of diseases Agriculture – increase crop yield and resistance Conservation – If two species are thought to be one and only one is legally protected |
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list the 7 levels of classification (Kpcofgs) |
Kingdom phylum class order family genus species |
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list the 5 kingdoms |
Animals plants fungi protista archea eubateria |
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Eukaryotic cells |
have nucleolus and membrane bound organelles |
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Prokaryotic cells |
have neucleoid, free organelles, and pili and or flagellum |
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halophiles |
bacteria that love salt |
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methanogens |
Methane producing bacteria |
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Thermophiles |
Bacteria that love heat |
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3 bacterial shapes |
Coccus - round Bacillus - rod shaped Spirillum - spiral |
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3 bacteria formations |
diplo - pairs staphylo - clumps strepto - strings |
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Bacterial reproduction |
asexually divide sexually exchange DNA pick up loose DNA from environment go dormant |
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Virus |
small, non-living, infectious particlescontaining genetic material have no cytoplasm cannot reproduce on heir own |
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Fungi structure |
cap, gills, stalk hyphae, make up mycelium, make up stem reproduce by spores |
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yeast |
only unicellular fungi |
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Mendel's principle of segregation |
sperm and egg contribute allele |
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lytic cycle |
- inserts DNA - DNA forms loop - instructs cell to make more of the virus and capsils - leave cell to infect others |
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lysogenic cycle |
- inserts DNA - DNA forms loop - DNA inserted in cells chromosomes - each time cell divides viral DNA is replicated - instructs cell to make more of the virus and capsils - leave cell to infect others |
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incomplete dominance co-dominance dominant recessive |
bah b;ah blah |
