MS. CRAWLEY
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Mitosis Expository Essay
“European Invader: Nonnative buckthorn takes over habitats”
By Valerie Blaine
CLICK HERE FOR THE ARTICLE FROM THE DAILY HERALD
Please complete using at least one complete, quality sentence per question.
1. What is the European Buckthorn notorious for, according to the first several paragraphs of the article?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
2. Where and when did Buckthorn originate?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
3. Please explain some of its many original uses?
a. Greeks used it for…
________________________________________________________________________________________________________________________________________________________________________________________________________________________
b. Mapmakers used it for…
________________________________________________________________________________________________________________________________________________________________________________________________________________________
c. Early European pharmacists used it for…
________________________________________________________________________________________________________________________________________________________________________________________________________________________
4. What was the primary reason for early Americans to import buckthorn from Europe during the 1800s?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
5. Why was buckthorn considered an immediate hit in America?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
6. After it arrived in North America, it was soon discovered that the female trees produced thousands of berries.
a. How many seeds is this per berry?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
b. What happened to these berries?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
c. How did they get spread all over northeastern Illinois, Wisconsin, Michigan and Many states to the east?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
7. Buckthorn grows in very dense thickets.
a. Why is this a problem for prairie plants?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
b. Why is this a problem for taller canopy trees such as oak and hickory?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
c. Why is buckthorn called a monoculture as a result?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
8. Who are considered the habitat heroes in this article?
Why
?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
9. How do they do their hero work (please give three methods)?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
10. What are some of the local parks in which buckthorn has been cut out of?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
11. In its homeland, buckthorn has a positive role in both human culture and ecology. It is also valued by the local woodworker. Why is this so?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
12. Why is Barry Gordon spearheading (in charge of) research to explore the characteristics of buckthorn wood for other uses? What is the goal?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
13. What does Valerie Blaine hope to showcase in her next column? Why would she like to feature this?
________________________________________________________________________________________________________________________________________________________________________________________________________________________
14. EXTRA CREDIT! Please locate the scientific name for European buckthorn.
________________________________________________________________________________________________________________________________________________________________________________________________________________________
15. Please list two vocabulary words that you weren’t familiar with and list their definitions.
a.______________________________________________________________________________________________________________________________________________________________________________________________________________________
b.______________________________________________________________________________________________________________________________________________________________________________________________________________________
Home
X-Time Projects!
Tri. 1 Science
Class Syllabus
Safety Contract
Scientific Method
>
Save Sandy Lab
Mealworm Observation Lab
Fox River Study
>
Fall Writing Prompt Pre-test
How Healthy Is Our River?
Macroinvertebrate Feeding Frenzy
River Vocabulary
Metamorphosis
River History
Water Quality Tests
Field Trip Information
Field Trip Reminders
Chaperone Information
Field Trip Schedule
Water Study Webquest
Prairie Study
>
Vocabulary
Prairie Field Trip Form
Prairie Parent Volunteer Information
Prairie Plant Identification
Study Guide
Seed Dispersal and Classification of Living Things
>
seed dispersal information
Seed Dispersal Slide Show
Eagle Release Article Questions
Nonnative Plant Article
Classification Vocabulary
Study Guide for Classification Test
Whooping Crane Article
Tri. 2 Science
Analyzing and Interpreting Graphs
Life Over Time
>
Characteristics of Living Things/Classification/Five Kingdoms
Natural Selection Lab - Forks and Beans
Field Museum Parent Permission Slip
The Earth's layers
Precambrian Reading and Questions
Paleozoic Reading and Questions
Mesozoic Reading and Questions
Cenozoic Reading and Questions
Introduction to Microscopes
>
Microscope Anatomy
Microscope Anatomy Diagram
Using a Microscope Lab
History of the Microscope
Types of Microscope
Fingerprinting for Fun!
Microscope Webquest
Tri. 3 Science
The Cell
>
Cell Diagrams for Animal and Plant
Cell Theory Reading and Questions
Organelle notes taken in class
3-D Cell Project Information
Mitosis Powerpoint Notes
Mitosis Expository Essay