PowerPoint Presentation

Quarterly ReviewWhat are ecosystems?

Biotic and abiotic and their interactions in a given place

Quarterly ReviewWhat are ecosystem services?

Can be the processes by which life supporting resources are produced, and can be provided by almost any part of the environment.

Quarterly ReviewCan we see biodiversity? If so give examples

Number of species, variety of habitat, nutrientsQuarterly ReviewEthics, policy, literature and economics-----what study includes all of these?

Environmental Studies

Peril in the UnderstoryIf you have not turned in your questions sheet-------turn it in now!!

Quarterly ReviewHow many people are there in the world?

About 7 BillionQuarterly ReviewWhat is the difference between renewable and nonrenewable resources? Give a few examples.

Renewable resources can be replaced within our lifetime. Renewabletrees, sun, wind. Non-renewable

Quarterly ReviewWhat is considered when calculating your human footprint?

Fuel use, water use, energy to produce and transport grain/food. Things you buy, etc.Quarterly ReviewWhy is water polar? What does this mean?

The oxygen of the water molecule has a greater electron affinity and thus has a slight negative charge.

Quarterly ReviewWhat are the four macromolecules?

Lipids, proteins, carbohydrates and nucleic acids

Quarterly ReviewWhat is a positive feedback loop?

A system in which the response increases. For example bacteria population growth.

Quarterly ReviewGive examples of biotic and abiotic factors.

Quarterly ReviewUsing the terms producer, scavenger, carnivore and herbivore show how energy flows through an ecosystem.

Producer, herbivore, carnivore, scavenger

Quarterly ReviewWhat is the 10% rule? If the producers have 1000 Joules of energy how much energy will the herbivores have?

10% of energy is passed from level to level. 100Quarterly ReviewWhat happens during nitrogen fixation?

Nitrogen diffuses into the soil and is converted to ammonia by bacteria

Quarterly ReviewIn which layer of the atmosphere is most of the ozone layer found?

StratosphereQuarterly ReviewDoes the equator/lower latitudes reflect more or less of the suns rays then the poles?

Less

Quarterly ReviewWhat is albedo?

The ability of an object to reflect light (higher albedo=higher reflectivity.Quarterly ReviewWhat is the most important determiner of ecosystem diversity?

The number of species

Quarterly ReviewAre all mutations harmful?

No

Quarterly ReviewAre niche generalists or specialists more likely to survive environmental change?

Generalists