1. Identify the interactions to the right:
1. When two organisms live together but one is harmed
2. When two organisms need a specific resource
3. A barnacle attached to a whale
4. A lion that hunts a water buffalo
5. A clown fish living in a sea anemone
Identify the interactions to the right:

2. Identify and describe the important characteristics of a population
geographic distribution: where and how close
population density: how many
immigration : Individuals that enter
emigration: Individuals that leave
growth rate: birth versus death.
Talk in your tabletops:

3. Human Impact on the Ecosystem Note Note
NB Set-Up
10/2/19
Human Impact on the Ecosystem
Note Note
Image Image
Human Population Growth
EQ:
4 color-coded questions:
4 sentence summary: 52 53

4. NBpg 53
Slide 1 of 4
EQ: Understand the trend of human population growth, including all contributing factors.

5. NBpg 53
Slide 2 of 4
The scientific study of human populations is called demography, which examines the characteristics of human populations and attempts to explain how those populations will change over time.
World-O-Meter

6. Write in the Notes section (single- spaced):
NBpg 53
Slide 3 of 4
Don’t draw:
Write in the Notes section (single- spaced):
Analyzing the Chart
Determine the population increase from 1950 to 2010.
4,256,648,366
2. Does the 2050 prediction make sense? Why or why not?

7. Which Graph Represents Human Population?
Exponential Growth
Logistic Growth
Under ideal conditions with unlimited resources, a population will grow exponentially. Species reproduce at a constant rate.
Logistic growth occurs when a population's growth slows or stops (carry capacity), as resources become less available.

8. Historical Overview
Read (7 readers)
Like the populations of many other living organisms, the size of the human population tends to increase with time.
For the majority of human existence, the population grew slowly, very slowly.
Limiting factors kept population sizes low. (What factors?)
About 500 years ago, the human population began growing more rapidly. (What do you think happened?)
Life was made easier and safer by advances in agriculture and industry.
Death rates were dramatically reduced due to improved sanitation, medicine, and healthcare, while birthrates remained high.
With these advances, the human population experienced exponential growth.

9. Human Population Growth
NBpg 53
Slide 4 of 4
Draw the Graph, but not the gridlines
Human Population Growth
How did we get big so fast?
World Population

10. Identify the interactions below:
Quiz
Word Bank
1. When two organisms live together but one is harmed
2. When two organisms need a specific resource
3. A barnacle attached to a whale
4. A lion that hunts a water buffalo
5. A clown fish living in a sea anemone
Mutualism
Commensalism
Parasitism
Competition
Predation

12. How does ecosystem play an important role in the survival of humans?
NBpg 52
Slide 1 of 2
How does ecosystem play an important role in the survival of humans?
As a society, we depend on healthy ecosystems to do many things:
to purify the air so we can breathe properly
sequester carbon for climate regulation
cycle nutrients so we have access to clean drinking water without costly infrastructure
pollinate our crops so we don't go hungry

13. Name some of the major impacts humans have on the environment
NBpg 52
Slide 2 of 2
Humans impact on environment in several ways, some common effects include:
water quality
environmental pollution
greenhouse gas emissions
depletion of natural resources
contribution to climate change.
The impact of so many humans on the environment takes two major forms:
consumption of resources such as land, food, water, air, fossil fuels and minerals.
waste products as a result of consumption such as air and water pollutants, toxic materials and greenhouse gases
Name some of the major impacts humans have on the environment

14. Copyright Pearson Prentice Hall