1. How do the authors of this page define microevolution? A small scale evolution.
2. How do they define a population? A group of organisms that interbreed with each other.
--Read the section “Mechanisms of Microevolution”
3. Summarize each of the 4 mechanisms of microevolutionary change that are discussed.
Mutation- A random change.
2. How do they define a population? A group of organisms that interbreed with each other.
--Read the section “Mechanisms of Microevolution”
3. Summarize each of the 4 mechanisms of microevolutionary change that are discussed.
Migration- Organisms immigrate from a different population.
Genetic Drift- When they reproduce more of different kind of organism is made.
Natural Selection- The better adapted population survives and reproduces more.
4. Summarize the 3 examples of microevolution on this page.
The sparrow's size changes even from just over the U.S.
Mosquitoes us day length to tell what season it is.
Pesticide and herbicide resistance.
5. Summarize the results of the two different experiments (with and without predators).
5. Summarize the results of the two different experiments (with and without predators).
With predators camouflage was needed in order to survive and reproduce and without the predator their was no worry and allowed the guppy to survive without camouflage.
6. What types of selection were demonstrated in each experiment? Are these experiments truly cases of artificial selection? Explain your answer. Natural selection because the fittest and most evolved species lived to reproduce.
Use the simulation to test different hypotheses about why some guppies are very brightly colored even though that makes them easy for predators to find.
4. Explain the push and pull that the environment (including predators) has on the coloration of guppies in Endler’s pools.
6. What types of selection were demonstrated in each experiment? Are these experiments truly cases of artificial selection? Explain your answer. Natural selection because the fittest and most evolved species lived to reproduce.
Use the simulation to test different hypotheses about why some guppies are very brightly colored even though that makes them easy for predators to find.
- Why do some guppies tend to be drabber than others?
- Why do some guppies tend to be more colorful?
- What role does color play in guppy survival?
4. Explain the push and pull that the environment (including predators) has on the coloration of guppies in Endler’s pools.
The push and pull effect the outcome of the use of camouflage in the population.
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