For evolution by natural selection to happen, there must be:

Jan. 21st2014DO NOW:

1. Variation 2. Heritable Traits 3. Natural Selection

Copy the notes below into your notebook on the next available page:

Notes cont’d:

Copy the definition below into your glossary

Natural Selection: organisms that are better adapted to their environment are more likely to survive and reproduce; the environment “chooses” who lives and who dies.

ESSENTIAL QUESTION:Q. How do natural biological processes result in the development of new species?

OBJECTIVES:-Watch a video about Charles Darwin.-Take two-column notes on the Finches of the Galapagos Islands.

Video

NOVA: What Darwin Never Knew

2 Column Notes

-You will read GALAPAGOS FINCHES: Famous Beaks

-In your notebook on page , you will complete 2-column notes as outlined in the reading.

-CLASS SET ALERT!!! DO NOT WRITE on the Article

Jan. 22 & 23DO-NOW

On your Do Now Sheet, match the vocabulary word to the correct example..

1. Adaptation 2. Population 3. Variation

Picture B Picture CPicture A

ESSENTIAL QUESTION:Q. How do natural biological processes result in the development of new species?

OBJECTIVES:-Adaptations Practice.-Watch Planet Earth Videos and determine how Environmental changes will affect species.

EngageWhen the Galápagos were first formed, there were no plants or animals on the islands.

In your comp book, write about some ways that plants and animals from South America could have found their way to these rocky islands.

Be prepared to share!

Galapagos Islands

DO NOW

Pg 16 Pg 17

Tape in Handouts onto next two pages in composition book, and add Title.

Investigation: Finch Beaks

Investigation: Finch Beaks

Investigation: Finch Beaks

Expectations:1. Backpacks under desk

2. Read directions carefully and complete the investigation

3. Most questions will be answered using Qwizdom remote system

4. Stay at your table; do not wonder around the room.

5. Return materials exactly as you found them

6. Handle materials carefully to avoid accidents

Investigation: Finch Beaks

Part 1: Measuring Beak Variation

Ground Finch Lg. Picture Beak Depth

(cm)

Lg. Picture Beak Depth

(mm)

Real Beak Depth (mm)

ex. Finch 0000 10.5 cm 105.0 mm 10.5 mm

Finch 1075

Finch 2666

Finch 5560

Finch 3527

Finch 5026

Finch 1999

1. Using the ruler, measure the depth of 6 different finch beaks in centimeters (cm)

Investigation: Finch Beaks

Part 1: Measuring Beak Variation

Ground Finch Lg. Picture Beak Depth

(cm)

Lg. Picture Beak Depth

(mm)

Real Beak Depth (mm)

ex. Finch 0000 10.5 cm 105.0 mm 10.5 mm

Finch 1075

Finch 2666

Finch 5560

Finch 3527

Finch 5026

Finch 1999

2. Convert measurements into millimeters (mm) by multiplying by 10

Investigation: Finch Beaks

Part 1: Measuring Beak Variation

Ground Finch Lg. Picture Beak Depth

(cm)

Lg. Picture Beak Depth

(mm)

Real Beak Depth (mm)

ex. Finch 0000 10.5 cm 105.0 mm 10.5 mm

Finch 1075

Finch 2666

Finch 5560

Finch 3527

Finch 5026

Finch 1999

3. Convert to real beak depth by multiplying by 10

Investigation: Finch Beaks

Part 1: Measuring Beak VariationQuestions:

1) What was the size of the largest real beak? A) 8.5 mm B) 9.8 mm C) 10.9 mm D) 11.5 mm 2) What was the size of the smallest real beak? A) 7.8 mm B) 6.8 mm C) 8.9 mm D) 8.5 mm 3) Do you think this small variation in beak size

could affect a finch’s survival? Yes No

Investigation: Finch Beaks

Part 2: Battle of the Beaks1. Use the ruler to

measure and record the depth of the small and large beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year Predicted Winner

Trial #1

Trial #2

Total

Investigation: Finch Beaks

Part 2: Battle of the Beaks2. Slowly poor the

small and large seeds on the island (paper Plate)

3. Predict which beak will be better at picking up seeds during a normal year

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year

Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year

Predicted Winner

Trial #1

Trial #2

Total

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year

Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year

Predicted Winner

Trial #1

Trial #2

Total

4. One person will have the small beak, the other the large beak.

5. You will have 30 seconds to pick up as many seeds as possible and place them in your stomach

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year Predicted Winner

Trial #1

Trial #2

Total

6. Count the number of small and large seeds and record your data for trial 1.

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year Predicted Winner

Trial #1

Trial #2

Total

6. Repeat and collect data for trial 2.

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year

Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year

Predicted Winner

Trial #1

Trial #2

Total

7. Place 3 small seeds and all the large seeds on the island for the

8. Predict which beak will be better at picking up seeds during a Drought year

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year

Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year

Predicted Winner

Trial #1

Trial #2

Total

9. One person will have the small beak, the other the large beak.

10.You will have 30 seconds to pick up as many seeds as possible and place them in your stomach

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year Predicted Winner

Trial #1

Trial #2

Total

11.Count the number of small and large seeds and record your data for trial 1.

Investigation: Finch Beaks

Part 2: Battle of the Beaks

Small BeakSize=

_______mm

LARGE BeakSize=

_______mm

Normal Year Predicted Winner

Trial# 1

Trial# 2

Total

Drought Year Predicted Winner

Trial #1

Trial #2

Total

12.Repeat and collect data for trial 2.

Investigation: Finch Beaks

Part 2: Battle of the BeaksQuestions:

4) Which beak size was more successful during a normal year?

A) Small B) Large C) Both did well 5) Which beak size was more successful during a

drought year? A) Small B) Large C) Both did well 

Investigation: Finch Beaks

Part 2: Battle of the BeaksQuestions:

6) How did a change in the environment affect which beak size collected more food?a) The drought left mostly large seeds, which could only be

picked up by the small beakb) The change in the environment did not affect which beak

could pick up more seedsc) The drought left mostly small seeds, which could only be

picked up by the small beakd) The drought left mostly large seeds, which could only be

picked up by the large beak  

Investigation: Finch Beaks

Part 2: Battle of the BeaksQuestions: 7) Based on the theory of natural selection, how should the

population of medium ground finches change during a drought year?a) The population will decrease and those that survive will

have small beakb) The population will increase and beak variation will also

increasec) The population will decrease and those that survive will

have large beaksd) The population will most likely go extinct

 

Investigation: Finch Beaks

Part 3: Survival on Daphne Major Island2. Graph the seed data onto the seed abundance

graph.

Investigation: Finch Beaks

Part 3: Survival on Daphne Major Island3. Graph the finch data onto the Finch Population

Graph.

Investigation: Finch Beaks

Part 3: Survival on Daphne Major IslandQuestions:8) During what month and year was the seed abundance the

highest?A) January 1977 B) July 1976 C) January 1976 D) July 1978 9) During what month and year was the seed abundance the

lowest?A) January 1978 B) July 1977 C) January 1977 D) July 1978 10) During what month and year was the finch population the

highest?A) January 1977 B) July 1976 C) January 1976 D) July 1978 11) During what month and year was the finch population the

lowest?A) January 1978 B) July 1977 C) January 1977 D) July 1978

  

Investigation: Finch Beaks

Part 3: Survival on Daphne Major IslandQuestions:

12) What is the relationship between the finch population and seed abundance?a)When more seeds are abundant, there are more

finchesb)When more seeds are abundant, there are less

finchesc)When less seeds are abundant, there are more

small beaked finchesd)When less seeds are abundant, there are more

finches

  

Investigation: Finch Beaks

Part 3: Survival on Daphne Major IslandQuestions:

13) When they measured the drought survivors, they found that most were finches with big beaks. Why do you think bigger-beaked birds survived better than the smaller-beaked birds? a)Small-beaked finches moved to a different part of

the islandb)Bigger-beaked finches could eat the tougher seeds,

while the small-beaked finches starvedc)Small-beaked finches could find water as easily as

large-beaked finches.   

DO NOWDate:Jan. 24th 2014

Q. How do natural biological processes result in the development of new species?

Describe an organism that is closely related to snakes? Explain why you believe they are related.

ESSENTIAL QUESTION:Q. How do natural biological processes result in the development of new species?

OBJECTIVES:-Adaptations Practice.-Watch Planet Earth Videos and determine how Environmental changes will affect species.

Adaptive Advantages

• Complete the handout on your own first.

• Once completed, compare and discuss your answers with a partner.

Planet Earth

• We will watch 4 clips• As you watch the clips fill in the information

on your sheet including:-Species-Environment-Adaptations

• After the clip, compare your information with your group.

Planet Earth

• Once the clip is over, you will be given an environmental change.

• Determine which species is most likely to survive, and what adaptations must occur in that species to ensure its survival.

• Fill in your explanation on your sheet, and prepare to present, as a group, your predictions.

The Arctic

• Polar bears 1• Polar Bears 2

The Arctic

• Environmental change:– Global warming has cause all of the arctic ice to

melt leaving open ocean where there was once hard ice to walk and hunt on.

African Desert

• Elephant vs. Lion

African Desert

• Environmental Change:– Weather patterns begin to change resulting in

large amounts of rain year round.

Deciduous Forest

• Wasps

Deciduous Forest

• Environmental ChangeDrought causes the trees to produce far less acorns, and the ones that are produced are half the size.

Antarctic

• Fur Seals and Penguins

Antarctic

• Environmental Change:There is no change. Discuss what adaptations could occur if the environment stays the same.

Presentation Expectations

• Presenters:– Speak clearly and loudly

• Audience-Listen Quietly-Decide whether you agree or disagree-When presentation is over, you may be called upon to

share your thoughts