CP Biology for 10/10/17

First, we watched this video clip to review last classes lesson on Earth’s history.

Here is the powerpoint on Natural Selection that we viewed, Take the notes that you need here: the-theory-of-natural-selection

Then, we collected data on variation in sunflower seeds. Next class we will build a histogram.

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Honor Biology for 10/10/17 A-Day Only

Here is the powerpoint on Natural Selection that we viewed, Take the notes that you need here: the-theory-of-natural-selection

Today, we collected data on variation in sunflower seeds: We then constructed a histogram using class data and discovered that the Bell Curve is the most frequent distribution for traits.

We then read about Types of Natural Selection and completed the problems at end of the reading. The Exit Ticket was to answer questions 6 and 7 from the Seed Size and Evolution activity.

Exit Ticket:

6. A new species of birds is introduced to the area. The bird has a small beak and is unable to eat seeds larger than 17 mm long. Predict how this new predator might affect the distribution of seed size. How would this effect cause natural selection to occur?

7. In this experiment, how are variation and evolution dependent on each other?

 

How does evolution really work?

We watched this video in both honors and CP classes and journaled in our notebooks on the following two questions (for a notebook stamp):

1. What are the four parts of the theory of natural selection?

2. How does overproduction of offspring effect competition?

3. What does survival of the fittest mean?

4. What does differential survival and reproduction mean?