Natural Selection

Organisms with the most beneficial traits will survive.  This is commonly known as

• theory of evolution.
• variations.
• survival of the fittest.
• ecosystems.

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

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

This scientist developed the theory of evolution as he studied the finches.

• Charles Darwin
• Isaac Newton
• Albert Einstein
• Marie Curie

What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

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.

Do organisms "decide" to evolve and change?

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

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

• 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.

Suppose a certain species of insect lives in the lush green canopy of the rain forest. Some of the insects are bright green in color, and some are bright yellow. Assume there is a natural predator of the insect in the area. What do you expect to happen to the populations of the green and the yellow insects over time?

• The green insect population will increase and the yellow insect population will decrease.

• The green insect population will decrease and the yellow insect population will increase.

• Both insect populations will remain constant over time.

• Both insect populations will increase over time.

The peppered moth's color camouflaged it on the light colored tree bark. It's color was an example of a/n

• Variation

• Dominant trait

• Recessive trait

• Adaptation

Which organisms are most likely to survive?

• the best adapted (best fit)

• the fastest

• the strongest

• the most domesticated (tamed)