pgs 120-137 Flashcards
(29 cards)
what is the process of transpiration
when water goes into the plant through the roots and evaporates through the leaves and stems
why is interception a problem
when water dosn’t reach the soil it does not go through the pathways
what does the percentage of water plants use tell us
the amount of food we get.
what does the amount of water plants use tell us
detirmines production of agriculture and climate change
what is a carbon pool
where carbon is found
carbon flux
process of how carbon moved
what does carbon cycle mean
carbon is constantly circulating around the earth through organisms, bodys of water, the crust, and the atmosphere
how is photosynthesis related tot he carbon cycle
plants take in carbon and release oxygen
how did carbon turn to coal
decaying plants became burried in a thick layer of sediment that hhardened into rock. the carbon atom got trapped in the pressure and hardened into coal
role of combustion has on releasing carbon from fossil fuels into atmosphere
the burning or combustion of fossil fules releases energy that is stored in the carbon compounds in the coal and reconnects the carbon attom with oxygen in the air to form CO2 again
how do humans impact carbon pool
burn fossil fuels which releases carbon and we take in oxygen and release carbon
what leva consumer are humans
both primary and secondary consumers. when we eat plans we eat primary sources of energy. when we eat primary consumers like animals we ae secondary consumers
how much energy do we get from food
it depends. plants give us more energy than animals
producers
autotroph- obtain own energy from sun ex:plants and algae
consumers
heterotroph- must obtain energy from another source EX: humens, animals, bacteria
decomposers
or detrivores break down dead organismsEx: maggots, fungi, vultures
trophic 4
3rd level consumers, primarily carnivore, least energy
trophic 3
2nd level consumer, primarily omnivore, less energy, heterotroph
trophic 2
primary consumer, herbivores that consume producer, heterotrophs
trophic 1
producers, autotrophs, most energy found at this level
food chain
a linear sequence of links that generaly starts with a producer and ends with a teritory consumer or decomposer
food web
depicts ALL organisms in an ecosystem and their energy transfers
arrow
in food chain and food web representts the transfer of energy. the point is towards the organism that is getting the energy
biotic factor
all the living things in an ecosystem
