The occurrence of contact metamorphism would be evidence of A) ...

[danielfitts88]

The occurrence of contact metamorphism would be evidence of
 
  A) the local intrusion of magma.
  B) weathering and erosion.
  C) lithification of clastics.
  D) cementation of sedimentary rock.
  E) regional plate collision.

Question 2

Using outside sources, provide an example of each of the following symbiotic relationships: mutualism, parasitism, commensalism, and amensalism.
 
  What will be an ideal response?

[jennafosdick]

Answer to Question 1

A

Answer to Question 2

Answers will vary:
Mutualism should be an example where both organisms benefit, such lichen, clownfish and sea anemones, or bison and prairie dogs. Parasitism should focus on one organism benefiting at the expense of the other, such as mistletoe or lice. Commensalism should include an example where one benefits and the other gains no benefit, such as an ephiphytic plant or animals attaching to others for transportation. Amensalism should look at where one organism is harmed and the other does not benefit, e.g. allelopathy.

[danielfitts88]

Excellent

[jomama]

Gracias!