Lesson 5 Exit Ticket Urchin Variation

"Organisms that are better adapted to the environment survive to pass traits to their offspring" is the definition of

• Natural Selection

• Evolution

• Selective Breeding

• Artificial Selection

Which organisms are most likely to survive?

• the best adapted
• the fastest
• the strongest
• the most domesticated (tamed)

The differences among a species, like different bird beaks, are called

• genes.
• variations.
• traits.
• theories.

These moths are all the same species. The differences between their wings is an example of ________________

• Natural Selection

• Variation

• Homeostasis

• Extinction

According to natural selection, light colored tree trunks would favor

• light colored moths

• dark colored moths

• red colored moths

• red and light colored moths

Which of the following statements best describes what will most likely occur to the moth populations in the image below?

•  The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

• The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.

• The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.

• The light moths will change their wing color to match that of the dark moths.

Why is the mouse population changing over time?

• The light mice can reproduce more successfully than the dark mice
• The hawks eat more dark mice than light mice because the dark mice taste better
• The hawks eat more light mice than dark mice because they can see the light mice more easily
• The hawks eat more dark mice than light mice because they can see the dark mice more easily

There is variation in the number of tube feet that sea urchins have. Which of the following could be a selective pressure (and reasoning) providing those urchins with more tube feet with a selective advantage?

• Water clarity affects a predators ability to see and capture urchins, and those urchins with more tube feet have the advantage.

• Predators are more easily able to catch urchins who have more tube feet, thus providing the predator with the advantage.

• Urchins with additional tube feet find that their feet get tangled and they move more slowly from one location, so they are their own selective pressure.

• In areas with faster currents or rip tides, urchins with additional tube feet are better able to hold onto rocks and reefs which prevents them from getting pulled out to deep ocean areas.

Do organisms "decide" to evolve and change?

• Yes, they know they need to change to survive 
• No, they change because of natural selection

Why are advantageous traits more likely to be passed onto offspring?

• Because they are more likely to survive and reproduce.
• Because they come from dominant alleles.
• Because they come from recessive alleles.
• Because the trait is an acquired phenotype.