What about fitness?
1. Explain how fitness was involved in your example from "Natural Selection at Work".
3. Natural selection can often lead to new traits increasing in prevalence over time, but
can also contribute to conservation of traits, or traits that remain unchanged over
long periods, and are shared by diverse organisms. Explain how/why this is
important, and how it relates to fitness.
Sexual selection
1. Why is sexual selection considered a "special case" of natural selection? How does
this support your definition of fitness?
Artificial selection
1. Why do we consider this type of selection artificial? Give another example of
artificial selection besides the one shown.
Look through the following sections and describe what you learn :
Adaptation
1. Explain what an adaptation is.
2. Why is saying an organism has an adaptation different and more accurate than
saying an organism ADAPTED if we don’t further clarify our explanation?
In other words, why would it be better to say “white fur is an adaptation that polar
bears have developed which allows them to remain camouflaged in their
environment” than “Polar bears adapted to have white fur so they were
camouflaged” . What’s wrong with the second statement? (follow the link below and
come back to this question if you need some hints!)
Misconceptions about natural selection: Why are "need," "try," and "want" are not rarely
appropriate to use when it comes to explaining evolution?