Why does evolution matter now?

Answer the four questions below in your notebook based on the PBS video: Why does evolution matter now?

  1. Why is the Russian prison system considered to be “ground zero” in the fight against TB?
  2. What is responsible for the evolution of TB strains that are resistant to multiple drugs?
  3. How does the misuse of antibiotics affect the evolution of disease-causing bacteria? Use the theory of natural selection to explain the growing resistance to antibiotics
  4. Why should we care about a resistant strain of TB in Russia?

Honors Biology Bday for 11/3/16

We finished up the video clips from last block and discussed the questions that we that students considered while/after they watched.

Next we did a close reading on a interview with a scientist who researches evolutionj on the molecular level.

Read the interview : appendix_4_-_building_block_c_article_-_discovermagazine-com-mutation_not_natural_selection_

Answer the following questions in your notebook:

1. What aspects of evolution are random? Support your claim with data from the activity and textual evidence.

2. What aspects of evolution are non-random? Support your claim with data from the activity.

CP Biology for 11/2/16

We collected data for finch beak depths on three of the Galapagos Islands as a class.

I have attached the bird-beaks template to help your graph the data you collected from the Galapagos Islands’ finches.

Create your histogram with your partner and calculate the mean (average) too. Record your data and interpretation of the graph in your notebook (check with Mr Bowen for a notebook stamp.)

Questions to consider in your notebook:

1. Why is it important to study beak size? Why do birds of the same species have different beak size than others? (Hint: What are beaks used for? Refer back to reading in text.)
2. Compare the histograms. Explain the patterns of variation?
A. between different species?
B. between different populations of the same species?
3. Why are these patterns occurring? Develop at least two possible hypotheses for these patterns. Make sure to include evidence that supports each hypothesis. (check with Mr Bowen to get a stamp in your notebook and discuss your hypotheses.)

 

Honors B Day for 11/1/16

Student modeled natural selection using paper airplanes as birds and modifying them based on random mutation (selected by dice). A copy of this is here.lesson_3_investigating_the_sources_of_variation_in_a_population

We also watched three videos on natural selection and answered questions about them in our notebooks.

Video Clip #1

How did public opinion of his day affect Charles Darwin’s willingness to publish the Origin of Species?

Video Clip #2

How is the overproduction of offspring related to competition between individuals?

How is variability between individuals related to the fact that some individuals are more successful and leave more offspring than others?

Video Clip #3

Why might the newt and the garter snake be an example of and “Evolutionary Arms Race”?