1. rocks show different minerals or grains that have been segregated into layers or aligned nonrandomly.
a. skarn
b. contact
c. foliated
d. regional

2. which of the following is a type of nonfoliated metamorphic rock?
a. slate
b. gneiss
c. phyllite
d. quartzite

3. what is the main factor that changes rocks during contact metamorphism?
a. heat
b. pressure
c. chemical environment

4. when shale undergoes metamorphism, it becomes
a. slate
b. schist
c. gneiss
d. quartzite

70 pts answer the following questions in full sentences and paragraphs, using at least 150 words, in the essay box below. 1. which organisms are carnivores? herbivores? omnivores? 2. if the ecosystem is balanced, which populations should be the largest? the smallest? 3. imagine a group of hunters kills half of the rabbit population. how will the other organisms be affected? 4. imagine disease kills 85 percent of the wolf population. how will the other organisms be affected? 5. imagine a foreign mountain lion species is introduced into the ecosystem. how will the other organisms be affected?