Author Question: Invasive species represent a threat to biodiversity worldwide. Based on either the examples ... (Read 91 times)

penguins · **on:** Jul 13, 2018

Invasive species represent a threat to biodiversity worldwide. Based on either the examples presented in the textbook or outside sources, describe several invasive species of concern in your area.

What factors contributed to their spread? Why are these species of concern, both in a broad context, as well as within your area.

Question 2

Discuss the process and causes of folding, and distinguish between anticlines and synclines.

What will be an ideal response?

TDubDCFL · **Reply #1 on:** Jul 13, 2018

Answer to Question 1

Answers will vary depending on where students live. Examples in the book that are fairly common throughout the United States include zebra mussels, Russian olive, kudzu, and purple loosestrife.

Answer to Question 2

When rock strata that are layered horizontally are subjected to compressional forces, they become deformed. Folding occurs when rocks are deformed as a result of compressional stress and shortening. An arch-shaped upward fold is an anticline. A trough-shaped downward fold is a syncline.