1. Daily Warm-up Monday, May 5th
What are the enzymes involved with DNA replication? What would happen if you had a mutation that changed the shape of topoisomerase?

2. Daily Warm-up Monday, May 5th
What do you think is happening in this picture?
HW:
-Read 6.1, test corrections due 5/23
Turn in:
-Test corrections if haven’t already

3. Human Environmental Impacts
The concentration of lights visible from space indicates high human population density
Easter Island
Photo: NASA

4. What types of impacts can you think of?

5. How is Earth like an Island?

6. Human Impacts Agriculture Development Industrial Growth Monoculture
Cities and suburbs
Industrial Growth

7. Renewable vs. Nonrenewable Resources
Renewable- can be replaced in a reasonable amount of time
Ex. Trees
Nonrenewable- cannot be replaced
Ex. Fossil fuels

8. Sustainable Development
Providing for human needs while preserving the ecosystems that are producing natural resources

9. Why might some cultures use resources at different rates?

11. Daily Warm-up Tuesday, May 6th
What is the difference between renewable and nonrenewable resources? What are examples of each? HW: -Read 6.2 Turn in: -Packet (not yet, need to discuss first)

12. Human Footprint
Write your footprint number on a piece of paper

13. Daily Warm-up Wednesday, May 7th
Where does absorption of nutrients occur in the digestive system? HW: -Nothing Turn in: -Footprint packet if haven’t already

14. Soil Sustainability Topsoil
Renewable but oftentimes used too fast
Loss of topsoil can lead to desertification
Deforestation can lead to erosion and loss of vegetation

16. Soil Use and Sustainability
Contour plowing
Leaving stems and roots behind to hold soil intact

17. Freshwater Resources Some sources not renewable
Groundwater aquifers can take millions of years to fill

18. Water Pollution Pollution Point source- exact location
Non-point source
Runoff

19. Biomagnification
Occurs when pollutants build up in an organism’s tissues
DDT

20. Sewage & Dead Zones
Runoff contains high amounts of phosphorus and nitrogen
Leads to algal blooms
When algae die, bacteria flourish and consume all of the oxygen.

21. Atmospheric Resources
Disruption of biogeochemical cycles
Air pollution
Greenhouse gases, smog, acid rain, and particulates