Download Evolution Review

Name: _____________________________
Evolution Review
7. Big Cats
6. Large Herbivores
5. Grasses and Rodents
4. Flowering Plants
3. Seashells
2. Single-Celled Fossils
The Law of
________________________says
that the ______________________
fossils are found on the bottom
layers of sediment.
When layer 3 was deposited, the
environment was most likely a
_______________________.
The above law is useful for
“relative” dating. What does the
term “relative” mean in this
context?
1. Igneous Bedrock

Why is relative dating unreliable? (What can happen to confuse the results?)

Scientists now have the ability to give fossils approximate dates in history. This technology is called
____________________________ dating.

________________-14 has a ___________-____________ of 5,730 years.

Imagine the following VERY PRETEND scenario…
Scientists find the fossilized remains of a saber-toothed tiger. A
sample of the fossil is analyzed and found to have 12.5% of the
expected amount of C-14 of a similar sample created today.
Approximately how long ago did the tiger die?

What do the terms spontaneous generation and vital force refer to?
 “An adult dinosaur lies in a
nestlike depression with 34
young, suggesting that death
struck suddenly.”

What can we infer about dinosaur behavior from
this fossil finding?

Think about it: How does nature “measure” success?

How could good parenting be a trait that is selected for? How could good parenting be a trait that is
selected against?

What is the most likely explanation for the extinction of the dinosaurs?

How old is the Earth? __________________________________

Why were early European scientists confused by what they found in the fossil record?
1.
2.


What book did Darwin write? ____________________________________________
According to Darwin, how does natural selection work? (You were given four “steps” in your notes…)

What is this an image of (to the right), and how
does it support the theory of evolution?

What caused the changes in the above bones?

Critical Thinking: Explain how walking
sticks evolved to be so well camouflaged.
(Hint: Use the steps of natural selection in
your answer

Why did the Masked Boobies (from the Galapagos video) allow their second chick to die?

A common misconception about the theory of evolution is that humans evolved from apes. What is the real
evolutionary connection between humans and apes?

In sexual selection, why do females choose males with traits (bright colors, long tails, etc.) that would
appear to make the males vulnerable to predators?

Fill in the blanks. The Hardy Weinberg Equation has five assumptions about populations that are not
evolving:
1. The population is ___________________.
2. Mating is _____________________.
3. No new _______________________.
4. No _____________________.
5. All genotypes are reproductively _____________________.

What type of evolution is the chart on the right
showing? What causes this type of evolution?

What is meant by “isolating mechanisms” and
“speciation”? Give three examples of isolating
mechanisms. (This question is not about the
chart at the right.)
Which chart shows gradualism and which chart shows
punctuated equilibrium?
Which does the fossil record seem to support?
Name one way discussed in class that scientists can explain
sudden jumps in evolution.
Draw the population graphs for stabilizing, disruptive, and directional selection.
What happens to a species’ genome after when there is a bottleneck effect or a founder effect? Use the word
genetic drift in your explanation.