Test review for evolution 2

According to Darwin’s theory of natural selection, individuals who survive are the ones best suited for their environment. This is because...

• acquired changes developed through use.

• adaptations help them survive

• lack of competition within the species allows them to survive

• of choices made by plant and animal breeders.

Which of the following applies to the theory of natural selection?

• Organisms give characteristics acquired by use and disuse to their offspring.

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

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

• Organisms will pass on unfavorable changes 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.

• characteristics best suited to environmental conditions.

Which of the following is caused by natural selection

• all the variation found in all populations

• unrelated species living in different locations

• changes in the inherited characteristics of a population over time

• the eye color of your dog

Common ancestry explains why....

• well-adapted species have many offspring.

• conditions in an organism’s environment ensures the organism’s survival.

• birds and reptiles share a number of inherited characteristics.

• tigers are so different from cheetahs.

The location of bones of many fossil vertebrates are similar to those in current vertebrates. This supports which of the following theories?

• Lamarck’s tendency towards perfection

• common ancestry

• analogous structures

• the inheritance of acquired traits

In humans, the pelvis and femur, or thigh bone, are involved in walking. In whales, the pelvis and femur shown in the picture are

• examples of fossils.

• vestigial structures.

• acquired traits.

• examples of natural variation.

Modern sea stars resemble some primitive vertebrates. This similarity may suggest that primitive vertebrates

• share a common ancestor with sea stars.

• evolved from sea stars.

• evolved before sea stars.

• belong to the same species as sea stars.

A change in the genes of a cell is called a

• recombination.

• polygenic trait.

• single-gene trait.

• mutation.

If a mutation introduces a new skin color in a lizard population, what might determine how often that new skin color shows up in the next generation?

• how many other alleles are present

• whether the mutation makes some lizards more fit for their environment than other lizards

• how many phenotypes the population has

• whether the mutation was caused by nature or by human intervention