Studied by 2 people
stock
is the harvestable portion of the resource
total impact (I)=
product of population(p) x affluence(A) x technology(T)
carrying capacity
is a measure of the ability of a system to support life
ecological footprint
the environmental impact of an individual or population
overshoot
humans have surpassed earth capacity (using 39% more of the planets resources)
scientific method
observations, questions, hypothesis, predictions, tests, the results either support or reject hypothesis
manipulative experiments
yield the strongest evidence (show causation, not always possible)
natural or correlational tests
show real-world complexity (cannot show causation)
canadas ecological footprint
about 7.6 ha
since the industrial revolution atmospheric co2 concentrations have risen…
over 40% to the highest level in 800,000 years
sustainable development
the use of resources to satisfy current needs without compromising future availability
triple bottom line
sustainable solutions that meet environmental goals, economic goals, and social goals
matter
all material in the universe that has mass and occupies space
hydrogen bonds
o2 from one water molecule to be attracted to the hydrogen atoms of another
most acidic to least acidic
battery acid, lemon juice, rain, pure water, sea , ammonia, naoh
proteins
produce tissues provide structural support, store and transport energy
DNA and RNA
info in DNA is rewritten to RNA. RNA directs amino acid assembly into proteins
genes
regions of DNA that code for proteins that perform functions
genome
an organisms genes - divided into chromosomes
lipids
dont dissolve in water
plastics
synthetic polymers, cause long-lasting waste and pollution
energy conversion efficiency
the ratio of useful energy output to the amount needing to be input
chloroplasts
organelles where photosynthesis occurs (contains chlorophyll)
heterotrophs
organisms that gain by feeding on others
cellular respiration
C6H12O6 + 6O2 = 6CO2 + 6H2O + energy
hydrothermal vents
host entire communities that thrive in high temperatures and pressure on the ocean floor
chemosynthesis
uses chemical bond energy to produce sugar
primordial soup (the heterotrophic hypothesis)
life originated from a soup of simple inorganic chemicals in the oceans
“seeds” from space (the panspermia hypothesis)
microbes from space traveled on meteorites to Earth
Life from the depth (the chemoautotrophic hypothesis)
life originated in deep-sea hydrothermal vents with abundant sulfur
how many major plate tectonics
15
Note 
Flashcard (21)