In our last Biology classes, we’ve been working with variation and adaptation. This were some activities we were told to do from our teacher’s blog. I worked with Rosita Tagle.
- What I learnt today:
What is variation when it helps an organism to survive?
How does the environment affect variation?
What are the differences between variation, adaptation and mutation?
How does an organism variate?
- 2. Mind map:
- Video 1: Steve Pratt
Video 2: author: Mr Pollock-bibliography/sources: AQA AS Unit 2 Biology students
Video 3: author: Mr Fox’s Science Classroom
- These videos are linked to Geography since they talk about how species adapt to different environments and History because they say that they evolved through the years, what relates it with History since it happened millions of years ago.
Video 1: Organism’s Mutation
Video 2: Why organisms variate
Video 3: How variation becomes adaptation
Page 262 and 263
3.a) Some features present in all birds are beak, scaly legs and feathers.
b)i.Wing length is an example of continuous variation since there’s is not a definite length the wing must measure.
ii. Another feature of reed warblers that shows continuous variation is its beak length.
c)i. The evidence from the table that supports this conclusion is that the birds whose wings measured between 66 and 67 mm were able to live longer.
ii. Another evidence which may also support that conclusion is checking how long they get to live in their natural environment, rather than when being trapped.
d) Natural selection is responsible for the length in the reed warblers wings since they have stayed with that wing length for many generations as it probably is the most useful.