Brainpop-Natural Selection

Which statement about the members of a population that live long enough to reproduce is consistent with the theory of natural selection?

• They transmit characteristics acquired by use and disuse to their offspring.

• They tend to produce fewer offspring than others in the population.

• They are the ones that are best adapted to survive in their environment.

• They will pass on unfavorable traits in the species.

According to Darwin’s theory of natural selection, the individuals that tend to survive are those that have

• characteristics their parents acquired by use and disuse.

• characteristics that plant and animal breeders value.

• the greatest number of offspring.

• variations best suited to the environment.

Which statement is in agreement with Darwin’s theory of evolution?

• More offspring are produced than can possibly survive.

• The organisms that are the fittest are always largest and strongest.

• The number of offspring is not related to fitness.

The beaks of finches found on various Galapagos Islands differed based on

• the size of their island

• the length of their wings

• the available food supply

• the predators that hunted them

What is a common ancestor?

• an animal that has a lot of offspring

• an animal from which two or more different species evolved

• an animal that is related to many other species

• an animal that is good at escaping from predators

Which of the following is an example of an environmental pressure?

• the air pressure in the atmosphere

• breeding between two members of the same species

• a lake that is gradually running out of water

• a fight between two members of the same species

In the phrase, "survival of the fittest," the term 'fittest' refers to

• the best-adapted organisms

• the biggest organisms

• the smartest organisms

• the fastest organisms

Which variation would be most likely to benefit any organism, regardless of environment?

• the ability to produce energy more efficiently

• the ability to swim deeper

• markings that help it blend into its background

• bigger claws and teeth

In the candy corn lab that we did in class, the different M&M's represented a population of organisms. What was the variation in this population?

• sizes of M&M

• shapes of M&M

• color of M&M

• location of M&M

In the candy corn lab, which of the variations helped the organisms survive the most?

• blue

• green

• orange

• brown