click below
click below
Normal Size Small Size show me how
Crystial exam
exam study guide
| Question | Answer |
|---|---|
| during what period did humans alter their habitats? | hunter-gatherer, industrial revolution, and agriculture revolution |
| in which country is the population likely to be increasing most rapidly? | Kenya |
| why is the world's loss ofbiodiversity a source of concern? | humans depend upon other organisms for food and oxygen |
| newspaper is what kind of material that becomes a polutant if allowed to accumulate more rapidly than it can decompose? | biodegradable |
| which country is most likely to have either a stabilized or a slowly growing population? | mexico |
| sunlight, air, forests, minerals, and water are all what? | natural resources |
| residents of what kind of countries make up about 80 percent of the world's total population? | developing |
| a natural material that can be replaced relatively quickly by natural processes known as what? | renewable resources |
| what is said to have occured when the last member of a species dies? | extintion. |
| compared to a developing nation, developed nations have what? | greater personal whealth |
| what is natural selection? | process that causes the characteristics of a population to change without human control |
| many angiosperms depend on animals for what? | pollinating their flowers and distributing their seeds |
| what is evolution? | change in the genetic characteristics in a population from one generation to the next |