Bio Quiz 1

process for producing empirical knowledge by observing natural phenomena

overarching models of the world that guide our interpretation of events

revolution in scientific thought when majority of scientists accept that the old explanation no longer explains the new observations well

Systematic study of our environment and our place in it

Wrote "Man and Nature" began era of environmental protection

• Utilitarian conservation--manage to use later
• Roosevelt & Pinchot

Started federal agencies for Pragmatic Resource Conservation

• Pragmatic Resource Conservation
• 1st chief of forest service

• Preserve-don't use because of value
• Muir

Started preservation era, national parks

• 60's people more aware: human population growth, fossil fuel extraction/use, recycling, air and water protection
• Rachel Carson

• Silent Spring
• started modern day environmental movement

• Links environmental quality and social progress on a global scale
• major international environmental conventions
• sustainable development

Not using resources so we have them in the future

• sustainable solutions meet:
• environmental goals
• economic goals
• social goals

cntral idea in en. science: network of interdependent components and processes with materials and energy flowing from one component to another

• Biological community and it's physical environment
• -complex assemblage of animals, plants, and their environment through which materials and energy move

state variables (compartments) which store resources such as energy, matter, and flows

• receive input from surroundings and produce outputs that leave the system
• -most systems

• exchanges no energy or matter with its surroundings
• - i.e. biosphere 2

The energy and matter that flow intro, through, and out of a system

• increase in the state variable leads to further increases in the same variable
• -can lead to collapse

• Dampening affect: too many fish in a pond leads to food scarcity-fish mortality
• -maintains stability

complex varieties- larger influences beyond its borders help stabalize

Ability to do work

Energy in moving objects

Stored and available energy

Energy can be released to do useful work (food, gasoline)

• Heat (calories)
• Work (joules)

The energy that can be transferred between objects of different temperatures

How energy is transferred in natural processes- rates of flow and transformation of energy from one form or quality to another

states energy is conserved-total amount doesn't change

with each successive energy transfer/transformation in a system, less energy is available to do work

disorder tends to increase in all natural systems

• create carbs and other compounds using just sunlight, air and water
• -green plants

extracting enerfy from inorganic chemical compounds

• converts radiant energy into chemical energy
• -10% UV
• -45% visible
• -45% infrared

• 6h20 + 6co2 + solar energy = c6h12o6 + 6o2
• water + carbon dioxide + light=glucose + oxygen

• process of releasing chemical energy
• - reverse of photosynthesis

All organisms of the same kind that are genetically similar enough to breed and produce offspring

All the members of a species living in a given area at the same time

all the populations living and interacting in a particular area

• Organisms that produce organic material by photosynthesis
• -mainly green plans and algae

One of the most important properties of ecosystem- amount of biomass produced in a given area during a time period

Biological material

individual food chains interconnected

organisms feeding status

herbivore (plants), carnivore (meat), omnivore (both), scavenger (clean up carcasses), detritivores (consume debris), decomposer (recycling)

The Earth- land, water, and life supported

• Recreated complex biosphere model of Earth
• -ran out of oxygen and failed

study of relationships btwn organisms and their environment

Structure, function, complexity, interaction & interdependence, spatial relationships, temporal change

• Anything that has mass and takes up space
• -recycled

Photosynthesis, It is a structural component of organic molecules, Chemical bonds in carbon compounds provide metabolic energy, Fossil fuels

C6h12o6+ 6o2 = 6h2o + 6co2 + solar energy