Download EVOLUTION IN ACTION

April 21, 2018 | Author: Anonymous | Category: , Social Science, Anthropology, Human Evolution
Share Embed


Short Description

Download Download EVOLUTION IN ACTION...

Description

WARM-UP 2/6: • What are the three experiments to discredit the ideas of spontaneous generation & the vital force? • Include the names of the experimenters and what experiments were conducted. • What was the composition of the Earth’s early atmosphere? • Which scientists wrote a paper in the 1920’s predicting that the atmosphere could be responsible for organic molecules? • Which scientist recreated the early atmosphere to synthesize primordial soup?

EXAM • Wednesday February 12. • Study Guide: Due Tuesday February 11. • Will be stamped on 2/11 & Collected on 2/12

• Intervention/Study Lab • • • • •

Directed Test Prep: 45 minutes In this classroom Monday: 2:45- 3:30 pm Tuesday: 6:50 – 7:35 am 5% Extra credit on test • Up to 75% Test Score • Must be on time, stay 45 min, complete all assignments

FLIGHTLESS BIRD A Flightless bird ends up on two different islands. The bird is medium height, has a medium length weak beak and is slow moving. How will the bird adapt on Islands #1 & #2: Make 2 columns. How many birds can survive without competing for food?

For Each Bird Describe: Amount of feathers, Beak style, speed and height.

Hints: Weak Beaks are OK for insects. Strong Beaks are required for seed pods. Short beaks are Ok for food on the ground. Long Beaks are required for food inside bark.

MAKE 2 COLUMNS: 1 FOR EACH ISLAND ISLAND #1

ISLAND #2

Climate: Hot and Dry

Climate: Cold and Wet

Food Sources:

Food Sources:

a. Plants in seed pods on ground.

a. Plants in seed pods in tree bark.

b. Fast moving insects on ground

b. Slow moving insects on ground

c. Slow insects inside tall tree bark.

c. Slow insects inside tall tree bark.

WARM UP 2/7 For your flightless birds from yesterday’s activity. • Did the birds change to be more similar or more different? • What things increased the birds similarities? • What things increased the birds differences?

15-3 NOTES: EVOLUTION IN ACTION

PP. 308-311

EVOLUTION DEFINED…

Evolution of a population is due to environment and the interaction of other species

ARTIFICIAL SELECTION humans breed for specific traits causing differences in species (i.e. dog breeding)

TYPES OF EVOLUTION Convergent evolution: •Organisms with very different ancestors become more alike due to a common environment •compare analogous structures: same functions but different development

(EX: fish and whales)

Ex: whale and fish, bird and insect

TYPES OF EVOLUTION Divergent evolution: populations become more and more dissimilar to adapt to the environment

-compare homologous structures: similar body part but may have different functions

Adaptive Radiation: Population undergoes divergent evolution until it fills all areas of the environment

• EX: Rough-skinned newt and garter snake • Newt evolved to produce neurotoxins then the snake evolved resistance to this toxin through genetic mutations.

Birds and flowers, Humans and bacteria are other examples

COEVOLUTION • When two species each evolve in response to each other over a long period of time. • This leads to a close relationship

4-SQUARE MODEL Definition

Example

Picture

Word

Related Words (3)

CLASSWORK “Types of Evolution Tree Map” Vocabulary 4-squares • • • •

Convergent evolution Divergent evolution Artificial selection Coevolution

Definition

Picture

Word Example

Related Words (3)

Types of Evolution

Convergent Evolution

Divergent Evolution

Definition

Definition

Example

Example

View more...

Comments

Copyright © 2017 HUGEPDF Inc.