Essment
understand main ideas
1. main 2. summarize the three types of biodiversity.
3. generalize why maintaining biodiversity has a direct economic value to
humans.
4. differentiate between the direct and indirect economic value of biodiversity.
5. evaluate and discuss the importance of maintaining biodiversity for
future medical needs.
think critically
for the de m ont of a building proiect in

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

What does polymerase chain reaction (pcr) do? o a. separates dna fragments by size o b. cuts a dna sample into fragments o c. provides an overall picture of a person's chromosomes o d. makes more copies of a sample of dna

Atree root breaking a rock into smaller fragments is an example of both and mechanical weathering. when rocks are exposed to heat, they which can contribute to thermal stress. when harmful gases, such as sulfur dioxide and nitrogen oxide, react with water in the atmosphere, they can produce the agent of erosion involved in stream erosion is when the ground is so saturated that it can't absorb rainfall or when rain falls so quickly that the ground can't absorb the water, forms. a/an is a huge, heavy, moving body of ice that picks up rocks and sand and erodes the ground beneath it as these materials scrape across it. hot arid climates are prone to erosion by rows of trees and shrubs planted to protect fields from wind erosion are known as