Warm up
• What is a human activity that helps the
ecosystem?
• What is a human activity that harms the
ecosystem?
Human Activities affect the
ecosystem
4-22-14
Objective
• Students will be able to describe how human
activities affect the ecosystem as evidenced by
reading text and accurate completion of
worksheet 3.2
Review for test tomorrow:
Homework
Adaption
• A characteristic, a behavior, or any inherited
trait that makes a species able to survive and
reproduce in a particular environment
• *Can be seen in many ways…camoflauge ,
mimicry,
Aquatic
• Of the water
Limiting Factor
• A factor or condition that prevents the
continuing growth of a population in an
ecosystem
Carrying Capacity
• The maximum size that a population can reach
in an ecosystem
Equilibrium
• A population that has reached its carrying
capacity
Consider this: moose vs coyote
Look at page 64
Rachel Carson
• Founder of the environmental movement
• Known for her book Silent Spring and speaking
out about pesticides (biocides)
Biodiversity is important to the
ecosystem:
•
•
•
•
•
•
•
Extinction rates decrease
New Species are produced faster
Species are lost slower
More ecological niches available (jobs in the ecosystem)
Keeps the entire ecosystem intact
Enables more or a variety of species
Maintains balances with biotic life (plant & animal,
predator & prey)
• Produces a stable living environment
• More options available for plants and animals to meet their
nutritional needs
NOTICE
• *NOTE Slides 15-19 Accumulated from
McDougal Littell Science Ecology Teacher Aide
powerpoints
3.2
KEY CONCEPT
CHAPTER HOME
Human activities affect the environment.
Pollution and habitat loss make it difficult for
plants and animals to survive. Without the
necessary resources, biodiversity of living things
decreases, and ecosystems become less stable.
VOCABULARY
pollution
biodiversity
CHAPTER
RESOURCES
Pollution
SECTION
OUTLINE
3.2
KEY CONCEPT
CHAPTER HOME
Human activities affect the environment.
Pollution and habitat loss make it difficult for
plants and animals to survive. Without the
necessary resources, biodiversity of living things
decreases, and ecosystems become less stable.
VOCABULARY
pollution
biodiversity
CHAPTER
RESOURCES
Habitat Loss
SECTION
OUTLINE
3.2
KEY CONCEPT
CHAPTER HOME
Human activities affect the environment.
Copy these in your journal:
VOCABULARY
pollution
pollution
biodiversity
The release of harmful substances into the air,
water, or land.
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
3.2
KEY CONCEPT
CHAPTER HOME
Human activities affect the environment.
VOCABULARY
pollution
biodiversity
biodiversity
The number and variety of living things found
on Earth or within an ecosystem.
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
3.2
KEY CONCEPT
CHAPTER HOME
Human activities affect the environment.
II. Human activities affect the environment.
A. Humans use many resources.
1. Renewable Resources
VOCABULARY
pollution
biodiversity
2. Nonrenewable Resources
B. Pollution endangers biodiversity.
1. Air Quality
2. Water Quality
3. Pollution Across Systems
C. Habitat loss endangers biodiversity.
1. Removing Habitat
2. Changing Habitat
CHAPTER
RESOURCES
KEY CONCEPT
SUMMARY
Read pages 89-96
Complete worksheet 3.2
Once this is complete use some time to prepare
for the test tomorrow
After the preceding two are complete, find
something quiet to do while the rest of the
students finish