This presentation is the property of its rightful owner.
1 / 18

# Bellwork - slates & erasers on desks! PowerPoint PPT Presentation

Hunting permits are frequently issued to help control certain populations of animals. When would a state want to issue a LOT of permits for deer hunting? How could this affect the wolf population in the area? Are deers autotrophs or heterotrophs ? What about wolves? Explain your answers.

Bellwork - slates & erasers on desks!

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

#### Presentation Transcript

Hunting permits are frequently issued to help control certain populations of animals.

When would a state want to issue a LOT of permits for deer hunting?

How could this affect the wolf population in the area?

## Bellwork- slates & erasers on desks!

### Announcements

• Meet in M1 computer lab tomorrow for science fair proposals & research (take your 3 ring binder WITH YOU today!)

• Science Café on MONDAY! Bring a snack for the class 

### Instructions for notes/participation

When you see this pencil symbol next to something, you must write it in your notes

When you see the marker, answer the question on your slate & wait for the guest teacher to ask everyone to show

(No marker? Participate on scratch paper)

### What would happen if bacteria could reproduce indefinitely?

On a slate, draw what you think the population graph would look like

Exponential Growth

### What would happen if bacteria could reproduce indefinitely?

Exponential Growth

Draw a picture of an exponential growth graph in your notes

### What would happen if bacteria could reproduce indefinitely?

In just 36 hours a single E. coli bacteriumwould replicate enough times to cover the Earth in 1ft deep of its offspring

So why aren’t we covered in bacteria?

### What would happen if bacteria could reproduce indefinitely?

In just 36 hours a single E. coli bacteriumwould replicate enough times to cover the Earth in 1ft deep of its offspring

Limiting Factors!

(Turn and tell your neighbor- what are the 4 limiting factors we discussed block day…)

So why aren’t we covered in bacteria?

### World Population = 7.0 billion

Human Population Clock: http://galen.metapath.org/popclk.html

What eventually happens to the graph?

### World Population = 7.0 billion

Human Population Clock: http://galen.metapath.org/popclk.html

POPULATION CRASH!!!!

### World Population = 7.0 billion

Human Population Clock: http://galen.metapath.org/popclk.html

Have we reached our carrying capacity, or have we overshot it? Explain why.

### Human growth patterns

At what ages do you see more females than males?

75-79 & 80+

What age group makes up the biggest % of Mexico’s population?

Under 5

(5-9, & 15-19 are very close)

### Human growth patterns

Will Mexico’s population increase, decrease, or stay about the same?

INCREASE

### Human growth patterns

Will Sweden’s population increase, decrease, or stay about the same?

DECREASE

### Human growth patterns

Honey, I’m hooome!

Will United State’s population increase, decrease, or stay about the same?

What caused this bubble of middle-aged adults?

INCREASE

SLOWLY

### Graph & Conclusion- due TODAY!

• Graph how the population of jackrabbits vs coyotes change over time (think about what kind of graph this is…)

• Conclusion paragraph (complete sentences, in lab book)

• When finished turn the graph into front basket

• **If time- work on the Critter: Ecology Outline to get a head start on your next critter project