Biology Unit 9 Review

One of the most significant adaptations that Darwin noted was the

Three sources of genetic variation are

According to HW principle, genetic equilibrium would be more likely in a population of mice if

In genetic drift, the allele frequencies in a gene pool change because of

Primates descended from a common ancestor and branched into two groups known as....

Based on the adaptations Darwin observed in finches and tortoises in the Galápagos, he wondered

In the past, mass extinctions encouraged the rapid evolution of surviving species

The American toad breeds earlier in the spring than the Fowler’s toad does. What can be inferred from this info?

What was the main species that coexisted and interacted with early Homo sapiens?

The fossil record shows

The economist Thomas Malthus suggested that

What is a polygenic trait?

Fossils usually provide paleontologists with information about each of the following EXCEPT

# and location of bones of many fossil vertebrates are similar to those in living vertebrates supports which concept?

A change in the genetic material of a cell is called a:

Species Y & Z have very different genes. Species A & B have a few different genes. What is true

After Precambrian Time, the basic divisions of geologic time scale, from larger to smaller, are

The genes carried by all members of a particular population make up the population’s

The type of genetic drift that follows colonization of a new habitat by a small group is called

The Galápagos finch species are an excellent example of

to compare the relative ages of rocks, scientists sometimes use an easily recognized and widespread fossil type called

The situation in which allele frequencies in the gene pool of a population remain constant is

In the 1800s, Charles Lyell emphasized that

Charles Darwin’s theory of evolution by natural selection explains each of the following EXCEPT

Which factor might determine whether the frequency of the new allele will increase?

Darwin realized that the economist Malthus’s theory of population control

Lamarck’s ideas about evolution include the concept that differences among the traits of organisms arise as a result of

If an allele makes up half of the frequency of a population’s allele , its allele frequency is

The increase in brain size of hominids, particularly in the cerebrum, allowed for all of the following EXCEPT for....

Which of the following can produce a duplicate gene?

Which is NOT a characteristic of all primates?

When dairy farmers choose to breed the cows that give the most milk in a herd, farmers are following the principle of

Why did oceans not exist on Earth nearly 4 billion years ago?

The length of time required for half of the radioactive atoms in a sample to decay is its:

The endosymbiotic theory proposes that eukaryotic cells arose from

Mass extinction would most likely result from which of the following events?

James Hutton’s and Charles Lyell’s work was important to Darwin because these scientists

According to natural selection, individuals that tend to survive are those that have

Which of the following phrases best describes the results of natural selection?

Darwin first began to formulate his concept of evolution by natural selection after

Genetic recombination includes independent movement of chromosomes during meiosis as well as

In organisms that reproduce sexually, most variation that can be inherited is due to...

Proteinoid microspheres are tiny bubbles that resemble cells because they

Which of the following statements defines the members of a species?

Which factor would most likely disrupt genetic equilibrium in a large population?

A single species that evolved into several forms that live in different ways has undergone

Gradualism is a pattern of evolution in which

Similar patterns of embryological development in different but related organisms are responsible for the formation of

Darwin noticed that many organisms seemed well suited to

The Paleozoic Era occurred ___________ the Cenozoic

Molecular evidence in support of natural selection includes

What do Hox genes control?

Fossils are often found in this rock.

Which of the following adaptations is most likely the result of coevolution?

Genetic diversity in prokaryotes is primarily due to

The introduction of meat into the hominid diet allowed for which of the following?

Which one of these facts about mitochondria and chloroplasts constitutes support for the endosymbiotic theory?

A single-gene trait that has two alleles and that shows simple dominant-recessive pattern will

The hypothesis that all species are descended from common ancestors was proposed by

The number of phenotypes produced for a given trait depends upon

Each of the following is a condition necessary for natural selection to occur EXCEPT...

Sexual reproduction contributes to genetic diversity by allowing

Which statement about evolution in the Galápagos finches is true?

pattern in which species experience long, stable period of interrupted by brief periods of rapid evolutionary change is

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