April 11, 2022 warm-up

Male guppies range in color from dull to bright. While the dull guppies camouflage better with the sand, the bright guppies are more visible in the water. The graph below shows the number of male guppies and their color range.

If a new predator that eats guppies is introduced to the population, how will natural selection most likely affect the colors of the male guppies?

• The number of dull individuals in the guppy population will increase

• The number of bright individuals in the guppy population will increase.

• The dull individuals in the guppy population will develop brighter colorations

• The bright individuals in the guppy population will develop duller colorations.

Over a six-year period, a, biologist has collected data about the physical characteristics, behavior, feeding habits and mating rituals of four bird species living in a South American rainforest. At the end of the six-year period, the biologist claims that evidence of evolution is present in two of the four species. Which of the following is most likely to occur when the biologist presents these findings to other scientists?

• Scientists will revise the theory of evolution in light of this new discovery.

• Scientists will create a genetic map of the birds using a computer modeling system to share with South American leaders.

• Scientists will repeat the experiment in a controlled laboratory setting to validate the results.

• Scientists will debate and seek confirmation through additional research prior to accepting the findings as fact.

Which of the following best describes how the theory of evolution has changed over time?

• The theory of evolution describes a body of observations about the changes in organisms

• The idea of evolution did not develop until natural phenomena described what was occurring,

• Darwin's original theory of evolution was modified to the current theory as new evidence was discovered.

• Darwin's proposal for the theory of evolution did not contain enough empirical evidence to be widely accepted

Adaptations can be:

• camouflage

• ability to survive cold weather

• hunting skills

• all of the above

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

• the green population to increase and the yellow to decrease

• both populations should stay the same

• both populations will increase

• the green population to decrease and the yellow to increaseThis is a wrong answer

How do you "win" at natural selection?

• survive

• go extinct

• survive & reproduce

When every organism of a species has died.

• Evolution
• Natural Selection
• Extinction
• Artificial Selection

What word describes a trait that helps an organism survive in its environment?

• natural selection

• mutation

• camouflage

• adaptation

Animals with favorable variations reproduce more successfully than organisms with less favorable variations. This statement best describes the concept of

• overproduction

• use and disuse

• inheritance of acquired characteristics

• survival of the fittest