Natural Selection: the process by which traits that enhance survival and reproduction are
passed on more frequently to future generations than those that do not, thus altering the genetic
makeup of populations through time.
Mutations: accidental changes i
Chapter 11 Notes
Testing Your Comprehension
1. Biodiversity is a term that describes the variety of species, genotypes, and ecosystems in an
area. On the species level, diversity describes the number and kind of species present.
Chapters 5 & 6 Notes/Test Prep
Chapter 5 Questions
2. Name two examples of evidence for natural selection.
1) In some deserts, black volcanic rock stands in sharp contrast to the surrounding light
colored sand. The rock pocket mouse has
Chapter 8 Notes Part 2
As the blackpolls journey between Canada and South America, they likely take the path with the
most favorable wind currents, which would be different depending on the direction of their flight
and the time of
Chapter 8 Notes Part 1
Having a shorter waggle dance means that more bees have to come to consensus on the new
habitat to get the entire colony to go. With foraging behavior, a longer waggle dance convinces
more bees to go at once u