CHAPTER 19 Flashcards
Name the 3 things that come together to create the biosphere
atmosphere,lithosphere, hydrosphere
*come together
*life exisits
what are the four shperes the earth in divided in?
Atmosphere
lithosphere
hydrospere
biosphere
What is Biogeography?
distrubition of plants and animals
*relationships organisms=enviroment
*close related to ecology
describe coast redwood
specific climate requirements
==summer fog
describe red maple
TOLERATES a range of temp./moisture
what is the law of nature?
surivival of the fittest
what does it mean when organisms “lock in”
life or death
*for resources
resources: energy, growth,sex
how many species have been extinct on earth?
99.9%
what is the of % of extinction?
O: 80%
D: 75%
P: 96%
T: 80%
C: 76%
A: ?
where does resource flow?
biosphere
producers
plants
consumers
1st,2nd, 3rd
herbi,
carn,
omi.
decomposers
break down o.m==nutrients
what many plants provide 90% of worlds food
20
how many plants provide 50% of worlds food
3
what are the 3 big plants?
wheat
corn
rice
describe the photosy./respiraton cycle
plant growth
what does NDVI stand for?
greeness of surface
no green===
no plants
on earth what is the order starting from the equator of net primary production
high, seasonal, low
high precip.==high point productivity====
biomass production
what is a biome
large area characterized by spefic plant/animal
How is a biome determined
Temp. & precipitation
And season distribution
How does vegetation sorting happen
Environment gradients
Range of scales
