define renewable resources and provide three examples
What is a resource that is either always available or is naturally replaced in a relatively short period of time
ex: wind, water, sun.....
100
when all the members of a specific type of animals disappear from the earth it is said to be ______________
What is extinct
100
define poaching
What is the illegal killing or removing wild life from their environments
200
describe the amount of energy as you move up an energy pyramid
What is the most energy is a the lowest level and as you move up each level only 10% of enery is transfered
200
Define Continental Drift
What is the very slow motion of the continents
200
The contamination of earth's land, water, and air is called
What is pollution
200
the loss of a natural habitat is known as ____________________________
What is habitat destruction
200
what is the difference between threatened and endangered species
What is species with the possibility of becoming endangered in the near future are threatened. species with the possibility of becoming extinct in the near future are known as endangered
300
what are the two possible roles that a second level consumer may be
What is carnivores or omnivores
300
What are the three ways that dispersal can be caused
What is wind, water, and living organisms
300
define environmental science
What is the study of natural processes in the environment and how humans can effect it.
300
define keystone species
What is a species that influences the survival of many other species in an ecosystem
300
If a species have a limited gene pool diversity why would they have a higher chance of becoming extinct
What is species that lack a diverse gene pool are less able to adapt to changes in the environment
400
What are the three energy roles in an ecosystem
What is producer, consumer, and decomposer
400
what are the three limits to dispersal
What is physical barriers, competition, and climate
400
weigh the cost and benefits of drilling in antarctica
What is responses may vary.
400
what are the three factors that affect biodiversity
What is area, climate, and niche diversity
400
what are three reasons that the world population has increased dramatically over the last 400 yrs
What is improvements in medicine, agriculture, and waste disposal
500
Compare and contrast food web and food chain
What is food chain is a series of events in which one organism eats another and obtains energy. Food web consists of many overlapping food chains in an ecosystems.
500
define exotic species
What is an organism that is carried into new locatioins by people
500
what categories do environmental issues fall into
What is resouce use, population growth, and pollution
500
what are the four main causes of extinction?
What is habitat destruction, poaching, pollution, and exotic species
500
what are two types of costs and two types of benefits
What is costs- expense, possible ecological damage
benefits - new supplies of materials, and jobs