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Must Know High School Biology

Kellie Ploeger Cox

Chapter 30

Human Impact on Ecosystems - all with Video Answers

Educators


Chapter Questions

01:29

Problem 1

Compare and contrast the two types of ecological succession.

VS
Vivek Singh
Numerade Educator
00:59

Problem 2

A resource can be replaced at the same rate by which it is consumed. Give an example of this type of resource:

Mahendra Kumar
Mahendra Kumar
Numerade Educator
03:17

Problem 3

How are primary and secondary pollutants related?

Iryna Ivaniuk
Iryna Ivaniuk
Numerade Educator
00:12

Problem 4

Using the following terms, explain how phosphorus can damage an aquatic ecosystem: algal bloom, decomposers, fertilizer, hypoxic, limiting factor, phosphorus.

Emily Marty
Emily Marty
Numerade Educator
01:12

Problem 5

For each of the following examples, indicate whether it is primary succession (PS) or secondary succession (SS):
a. Chernobyl nuclear contamination
b. California wildfires
c. Mount St. Helens volcanic eruption
d. Deforestation of Amazon rainforest
e. Retreating glaciers in Alaska

Joanna Quigley
Joanna Quigley
Numerade Educator
01:22

Problem 6

What important role does lichen play in primary succession?

VS
Vivek Singh
Numerade Educator
05:12

Problem 7

How does the burning of fossil fuels contribute to the phenomenon of climate change?

Mary Richards
Mary Richards
Numerade Educator