Midterm+MC+-+Rita

1. Define- Ecology

2. Xylem is... a. made up of mostly dead cells b. carries water and minerals from the roots up to the tree c. surrounds the piths d. all of the above

3. Spines are... a. modified leaves b. modified branches c. bristles d. a and b

4. Types of landscape disturbances are... a. fire b. climate change c. water/ drought d. normal population of deer e. a, b and c

5. Litter layer is the main type of fuel for what type of fire? a. surface fire b. crown fire c. canopy fire d. all of the above