Unit Test

Directions:

Answer the following questions with complete sentences in paragraph form. Remember that 5 sentences constitutes a paragraph.

1. Your neighbor read an article in the newspaper asking for volunteers to help pull "weeds" in a local national park. He says, "I thought National Parks were supposed to be left natural. The more kinds of plants the park has, the better. Why don't they just leave them there?" You answer him by explaining the purpose of natural parks. Include who they are created for and two reasons why they exist.

2. You are a Park Ranger in a national park in Michigan. The park you are managing is being invaded by an alien vine species from the Philippines. How might the alien plant have gotten into the local area? Describe at least 3 different ways.

3. What recommendations will you give about controlling the alien plant species in the park? Justify your recommendation with 3 reasons why the alien plant species should be managed. Discuss the effects the alien plant species can have on the park and native species.

4. Name 3 types of methods that could be used to control alien species and describe each one. Include which method needs to be researched the most before it is used and why.

5. There are 3 plants located at a lab station. You are to map then on the following grid. The masking tape lines are the plot boundaries. Include the data you need at the bottom of the map, but identify the plants simply as their labels: A, B, and C. What does each square on your grid represent?

6. Describe what information the following graph is giving. What is each bar telling you?

7. Study the spreadsheet below. Fill in the missing information. You may use a calculator. Assume you have a 2 x 2 meter plot.

	A	B	C	D	E	F
1	natives	diameter in	native area	non-natives	diameter in	non-native area
2		sq. cm.			sq. cm.
3	1-catclaw	75.00	_________	3-fountain grass	7.00	38.47
4	2-shrub	32.00	_________	5-fountain grass	10.00	_______
5	4-prickly pear	18.00	_________	6-fountain grass	28.00	706.50
6				7-fountain grass	25.00	490.62
7				8-fountain grass	33.00	314.00
8				9-fountain grass	15.00	176.62
9				10-fountain grass	68.00	_________
10				11-fountain grass	34.00	_________
11				12-fountain grass	52.00	1962.50
12				13-fountain grass	44.00	1256.00
13
14	Total natives	area	_________	Total non-natives	area	_________
15
16	% natives	_________		% non-natives	_________

8. If you were using a computer spreadsheet, what formula would you use to calculate the following:

Here are the key elements to remember:

always start a formula with =
+ means to add
- means to subtract
/ means to divide
* means to multiply

a) the % covered by non-native plants (cell F18)

b) the 5 covered by native plants (cell C18)

9. Graph all of the information contained in the following spreadsheet (not just the averages). Title your graph and label the x and y axis.

	A	B	C
1	group #	% native coverage	% non-native coverage
2	1	8.00	20.89
3	2	22.00	65.00
4	3	33.00	54.00
5
6	Averages	21.00	46.63

10. Assuming that plants A and B are native, and plant C is an alien, calculate the percent coverage of natives and aliens in this plot. Show all your work. Points will be deducted for showing only an answer with no intermediate steps. You may use a calculator.

Plant Identification.

Give the common name of the 15 of the plants that are laid out. Include at least 5 grasses. Be sure to include the specimen number next to each name and a letter N if it is native or an A if it is an alien. Extra credit may be earned by including the scientific name.

	ID #	Name	Native or Alien?
11	______	________________________________	_________________
12	______	________________________________	_________________
13	______	________________________________	_________________
14	______	________________________________	_________________
15	______	________________________________	_________________
16	______	________________________________	_________________
17	______	________________________________	_________________
18	______	________________________________	_________________
19	______	________________________________	_________________
20	______	________________________________	_________________
21	______	________________________________	_________________
22	______	________________________________	_________________
23	______	________________________________	_________________
24	______	________________________________	_________________
25	______	________________________________	_________________