Buscar
Estás en modo de exploración. debe iniciar sesión para usar MEMORY

   Inicia sesión para empezar

level: Ecology

Questions and Answers List

level questions: Ecology

QuestionAnswer
Features of 5 main vertebrate classesBirds: feathers growing from skin, parabronchial tubes in lungs Bony ray-finned fish: scales, gills Reptiles: dry scaly skin, extensive folding in lungs Amphibians: moist permeable skin, internal folds in lungs Mammals: hair grows from skin, alveolus in lungs
Give a food chainpassionflower, heliconias butterfly, tegu lizard, jaguar
how much energy is passed to each trophic level?10%
what does the chi squared value mean for a set of data?if the x2 is within or above the critical value, then this validates the data (that it wasnt absolutely just due to chance)
Distinguish between saprotrophs and detritivoressaprotrophs perform external digestion, like bacteria or fungi. Whereas detritivores do internal digestion, like moth larva
Describe the greenhouse effectShort wavelength radiation is emitted by the sun. Some is absorbed by ozone but most of it passes through the atmosphere. Earth's surface reemits that as long wavelength radiation, but that radiation is trapped as heat in the atmosphere by excess greenhouse gases
Two ways in which coral reefs dieThrough the acidification of the ocean when co2 reacts with water to make carbonic acid. This makes more hydrogen carbonate instead of calcium carbonate and releases the co2 in limestone (corals). carbonic acid in rainwater is the second way
how are fossil fuels made?Gas and oil are made when they end up on the pores of shale in the sea bed. the shale was previously silt mixed with organic matter of dead marine organisms. and coal is made when peat is pressurized; peat is organic matter that wasnt able to be fully decomposed due to anaerobic conditions in swamps or bogs
What are the 3 requirements for a sustainable ecosystem?Energy availability (normally supplied by the sun, nutrient availability (done by decomposers that break down organic matter to release their nutrients), and detoxification of waste (done by decomposers)
How are modes of nutrition divided?Autotroph: chemosynthetic, photosynthetic Heterotroph: consumer, saprotroph, detritivore
Can heat energy be converted into another kind of energy by living organisms?NOOOO
Why is energy transformation not 100% effective?Because energy will always be lost as heat to the environment due to cell activities
Discuss whether the greenhouse effect impacts Earth's temperatureWithout it earth's mean temperature would be -18 degrees, so it does have an impact, but it's not the only factor.
Sepase el carbon cycle, talk about itdeay lookitup
Features of 7 animal phylaCnidaria: mouth but no anus, radially symmetric, tentacles, stinging cells Chordata: notochord, pharyngeal gill, post anal tail Annelida: bristles present, bilaterally symmetric, segmented Platyhelminths: flat bodies, unsegmented, bilaterally symmetric Arthropoda: segmened, exoskeleton, bilaterally symmetric Mollusca: muscular foot, mouth and anus, shell present Porifera: no anus or mouth, no detected symmetry, pores all over
Features of 4 plant phylaBryophytes (moss): spores to reproduces, no vascular tissue present Filicinophytes (fern): spores, vascular tissue present Coniferophytes (pine cone): seeds, vascular tissue Angiospermophytes (flowers): seeds, vascular tissue
Features of 5 main vertebrate classesBirds: feathers growing from skin, parabronchial tubes in lungs Bony ray-finned fish: scales, gills Reptiles: dry scaly skin, extensive folding in lungs Amphibians: moist permeable skin, internal folds in lungs Mammals: hair grows from skin, alveolus in lungs