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Definition
Proteobacteria (5) Chlamydias Spirochetes gram-positive bacteria Cyanobacteria |
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Vibrio Cholerae, Salmonella, Shigella, Bdellovibrio are examples of what group of bacteria? |
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Definition
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Borrelia burgdorferi causes what disease? |
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Definition
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| Salmonella = endo- or exo- toxin producing bac? |
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spirochete carried by deer ticks, starts as red rash, antibiotics within one month |
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| aids in acidic waste water from mines |
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| sum of all earth's ecosystems |
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Definition
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| oceans biomes governed by 3 things: |
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Definition
availability of light distance from shore availability of nutrients |
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Term
where rivers flow into oceans (brackish) fresh water meets sea water important reproduction site à high nutrient content |
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Definition
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What factors govern lake and pond communities? |
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Definition
| Light, temperature, nutrients, oxygen |
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Name the freshwater biomes. |
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Definition
| Lakes, ponds, rivers, streams, wetlands |
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Term
Describe the three major zones in the ocean. How do they interact with the photic and aphotic zones? |
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Definition
Intertidal zone: ocean meets land, alternately dry and wet Pelagic zone: open oceanBenthic zone: sea floor (underwater) |
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Term
What determines what kind of terrestrial biome you’re in? |
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Definition
| Temperature (& light), rainfall |
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Term
| 1) extreme cold 2) wind and perma frost, always frozen 3) treeless (above tree line on high mt.s or N of coniferous) |
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Definition
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| 1) cone-producing trees (don't decompose fast) 2) poor soil nutrients 3) Long, cold winters, short wet summers -largest biome on earth |
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Definition
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| 1) Diverse tree species 3) Temp varies w seasons 5) Reg. Seasons 6) Moderate rainfall 8) Very rich soil |
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Definition
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3) Cold winters, hot summers 5) 4 defined seasons 8) Treeless |
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Definition
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| Cool 4) Hot summers 6) Rainy winters 7) Fires frequent |
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Definition
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1) farther from equator 3) Warm 4) Relatively equal day length 5) Reg. Seasons 6) Dry 7) Fires common |
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Definition
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1) near equator 2) very diverse 3) warm 4) stable day length 5) no seasons 6) abundant but variable rainfall 8) Fertile soil |
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In what domain are protists classified? |
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Describe the first atmosphere. |
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Definition
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Describe the second atmosphere. How have we developed our understanding of the gasses that would have made up the second atmosphere? |
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Definition
| Carbon dioxide, Nitrogen, hydrogen sulfide, water vapor, some methane & ammonia à gases emitted by volcanoes |
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Term
Describe the formation of the seas. When did it happen? |
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Definition
| Planetary cooling à condensation of water into the seas à 3.9 billion years ago |
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Term
How long were prokaryotes the only life form on Earth (roughly?) |
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What is the prevalent hypothesis regarding how the first life originated? |
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Definition
| (1) The earliest form of life was much simpler than anything today(2) Life originally developed from non-living components |
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What is the proposed first stage? |
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Definition
| Organic molecules formed from inorganic materials (carbon, hydrogen) |
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What is the second stage? |
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Definition
| (2) 1st org polymers (proteins, nucleic acids) may have polymerized on hot rocksa. Hyp: first genes were RNA and capable of self-reproduction |
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