1 / 20

Warm-up 2/6:

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?

chesmu
Download Presentation

Warm-up 2/6:

An Image/Link below is provided (as is) to download presentation 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. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. 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?

  2. 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

  3. 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.

  4. Make 2 Columns: 1 for each Island Island #1 Island #2 Climate: Cold and Wet Food Sources: Plants in seed pods in tree bark. Slow moving insects on ground Slow insects inside tall tree bark. • Climate: Hot and Dry • Food Sources: • Plants in seed pods on ground. • Fast moving insects on ground • Slow insects inside tall tree bark.

  5. 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?

  6. 15-3 Notes: EVOLUTION IN ACTION pp. 308-311

  7. EVOLUTION DEFINED… • Evolution of a population is due to environment and the interactionof other species

  8. Artificial Selection • humans breed for specific traits causing differences in species (i.e. dog breeding)

  9. 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)

  10. Ex: whale and fish, bird and insect

  11. 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

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

  13. 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

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

  15. 4-square Model Word

  16. Classwork • “Types of Evolution Tree Map” • Vocabulary 4-squares • Convergent evolution • Divergent evolution • Artificial selection • Coevolution Word

More Related