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# Natural selection lab

Published on: Mar 3, 2016
Published in: Technology      Sports
Source: www.slideshare.net

#### Transcripts - Natural selection lab

• 1. ObjectivesThe objective was to find out how adaptation helps animals survive. We had to find out what type ofbeak would be better for a birds survival.HypothesisI hypothesize that the bird with the spork beak will get most of the seads. The bird with the fork will getthe least and the bird with the spoon will do fairly well.Materials Spoon Fork Spork White beans Brown beans PeasMethodA. Students will be placed in groups of 31.  “The Bird”a.  Will be given a 60 second interval to gather as many insects as possible.b.  The bird will only use its beak to capture insects.c.  The bird will NOT use its feet (hands) to help pick‐up or transport insects.d.  When the beak is full of insects the bird will fly back to the nest, deposit the insects, then proceed to gather more insects.2.  “The Nest”a.  The nest does NOT move.b.  The nest holds the insects the bird has gathered.3.  “The Counter”a.  The counter will help separate and count the insects gathered. b.  The counter will write down totals for data.c.  The counter will bring the teacher all insects gathered.B.  Groups of birds will be assigned nesting locations around insect dense grasslands.C.  After each gathering, students will change their role in the group.  There will be 3 gathering periods so every student will have a chance to be “the bird”.Analysis (you will build a bar graph also, teacher will explain) 1. What environmental factors determined how many bugs were captured by each group?If they live in an enviorment with not many bugs they wont catch as many as if they live in a bug infestedinviorment. 2. Give two types of evidence for evolution.Scientist have found some bones in fish that show that they used to walk on land, therefore theyevolved. 3. How does genetics fit into evolution?Evolution occurs because the genes go through a mutation. 4. Include five new words and their definitions that you learned during this evolution unit.
• 2. Conclusion 1. Who was Charles Darwin?Charles Darwin was a naturalist who first introduced natural selection. 2. Why is Darwin so important to biology?Darwin contributed and was importance to science because he suggested that we all change in order tosurvive better. 3. Why are animals (organisms) so different?Organisms are so different because of evolution and natural selection. 4. Did the data support or reject your hypotheses?  Explain for each hypothesis.The data proved that I was wrong because the spoon got the most bugs.