Biology 280 Final exam

 1.The history of the earth has been marked by

a set of stable continents and oceans.

b.by continents floating about on denser material.

2.Extremely fine textured material in soil is called

A clay.

B sand.

C filamer.

D clay.

3.Which produces more waste?

a. oil and gas production.

b.agriculture

c.industry

d.municipalities

4.It takes about----- of benzene to contaminate water

a.0.05 ppb to contaminayte

b.1/5

c.1/10

d.100 gallonas per ton

5.The sourcing range for a chip mill is about

a.100 miles

b.1000miles

c.10 miles

6.Major threats toforests include____________-

1. exotic insects
2. introduced diseases
3. logging
4. all of the above

7.Which one of the following terms describes a - - interaction between a pair of organisms?

a. mutualism b. negativism c. competition d. canabalism

8. Drawing specific inferences from general conclusions is refered to as a. induction b. reduction c. deduction d. inferention

9. Which of the following statements about systems is false.

a. All systems have structure or organization

b. All function in some way

c. There are functional and structural relationships between parts

d. Function implies that flows and transfers occurr

e. None of the above

10. Positive Feedback is

1. where and increase in the output of a system leads to a decrease in output.
2. where an increase in the output of a system leads to a further increase in the output.
3. a mechanism for analyzing food consumption by animals.
4. a relatively safe type of stomach contraction.

True or False

11.Seasonality is caused by the changing distance of the earth from the sun.

 12.The goal of a scientific experiment is to prove the truth of your hypothesis.

 13.Even if inductive reasoning makes use of facts that are all correct, the conclusion may still

be false.

 14.There is no direct connection between climate and crops.

 15.Energy is created when ever a predator eats its prey.

Short Answer

16.A population is exponentially increasing at 5% a year. How long will it take to double?

Essay

17.You have noticed that dandelion populations have increased in an area where you spilled nitrogen fertilizer last year. This leads you to form a pair of hypotheses. Describe how you would use the scientific method in this case. Indicate the specific steps you would follow and relate them to the steps of the scientific method.

18.Discuss how you would protect and preserve the biodiversity of Kentucky.