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QUIZ 1STACK
| Question | Answer |
|---|---|
| Photosynthetic autotrophs | primary producers;form the foundation of aquatic food chains |
| phytoplankton | oxygen in air & water important byproduct of photosynthesis by algae |
| symbiotic rekationships | a)coral-zooxanthellae b)lichens c)sponges-green algae |
| Variety of uses by humans (seaweed) | algin,agar,alginic acid |
| biofuels | important source of foods in asia |
| kelp tablets | source of vitamins |
| algin | gelling agent in dinks |
| agar | culture medium for microbiolgy; gelatin for use in puddings |
| Heterokontophyta:Diatoms | most are unicellular;common type of phytoplankton;cell wall composed of cilica-non food product |
| diatomaceous earth | fossilized remains of diatoms-pool filtration,cat liter |
| downy mildew | *plant parasytes*blue mold of tabacco |
| dinoflagellaa:dinoflagellates | occur as marine phytoplankton;photosynthetic;symbiotic relationship with coral: zooxanthellae-play important part in biology of coral reefs |
| bioluminescence | blooms of dinoflagellates that produce light in marine waters. |
| red tide | bloom of dinoflagellates which produce toxins leading to mass mortalities in fish,birds,marine mammals |
| Chlorophyta:green algae | mostly aquatic,some float:phytoplankton,some attatched,contain green pigment (chloropill)-photosynthesis-reproduction:sexual=*gametophyte(gametes)*-zygote:sporophyte=spores-dispersed. some form symbiotic relationships with protozoa sponges and cnidarians |
| rhodophyta:red algae | *coralline algae* secrete calcium carbonate to form coral reefs-occur in the interidal zone;USES:agar, carrageenans-increase viscosity in liquids,nori-thin sheets of edible seawed |
| Dulse | fresh dulce can be eaten directly off rocks before sun drying |
| phaeophyta:brown algae | occur in the interidal zone include kelp beds or kelp forests |
| phaeophyta:brown algae characteristics | *BLADE*:leaf like structures,*stipe*stem that supports the blades*holdfast*root like sructure attatched to substrate*BLADDER*-gas filled (CO) float that keeps kelp upright in water column |
| phaoephyta contain? | Fucoxanthin=greenish brown color |
| phaoephyta uses | algin,agar,alginic acid-dietary sulements:kelp tablets |
| sedimentary rock | weathered erdod rock that is transported by water or wind and deposited into anoter area-covers 70% of earths surface. Most fossil deposits occur here |
| shale | buried and compacted clay sediments |
| limestone | KARST TOPOGRAPHY-three dimensional lanscape shaped by dissolution of soluble layers of rock:uc santa cruz |
| cenote | limestone sinkhole |
| coprolite | fossilized animal dung |
| ammonite | extinct group f marine animals related to cephalopds-chambered nautilus |
| metallic | copper,gold, PYRITE (fools gold) |
| non metalic | quartz(mineral in earths crust) |
| types of quartz | amethyst,JASPER,onyx |
| energy | coal,oil-important in economy 1800s===gold(bodie),borates,lead |
| metamorphic | pre-existing rock subject to high preassure,temp or chemicals such as marble,slate, quartzite,schist,jade or nephrite==occurs on scatered localities |
| jade/nephrite | kidney stone==canada=jade |
| types of soils=pedogenesis | clay=parrot licks macaw |
| igneous | volcanic molten cools on or below surface from rock**BULK OF EARTHS CRUST*IGNEOUS* |
| pumice | super heated=high pressure=ejected volcano or when lava and water mix(bubbles,gases) |
| pumice uses | polishes,pencil erasers,exfoliants,stone washed jeans |
| pumice stones | used to remove excess skin from bottom of foot |
| obsidian | volcanic glass produced when extruded from volcano and rapidly cools-for production of sharp blades of arrowheads |
| snowflake obsedian | slow cooling lave to show appearance of snowflakes in rock |
| amber | inclusions:animal and plant material gets stuck in sticky soft resin from tree |
| purified wood | fossil remains of tree turned into stone *PERMINERALIZATION*=organic material replaced with minerals maintaining original structure |
| petrification | wood burried under sediment and preserved due to lack of oxygen-decomposition=stone mold forms in its place |
Created by:
kbermont
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