Reference no: EM13301713

1. Random changes in gene frequency that occur in small populations describes the concept of

A) adaptive radiation.

B) convergent evolution.

C) parapatric speciation.

D) sympatric speciation.

E) genetic drift.

2. Embryonic development includes all of the following except

A) organogenesis.

B) fertilization.

C) growth.

D) gastrulation.

E) cleavage.

3. Immature eggs are called

A) oocytes.

B) blastocysts.

C) ovaries.

D) follicles.

E) basal cells.

4. Negative feedback loops act to

A) control sperm production.

B) cause milk production after childbirth.

C) cause uterine contractions during childbirth.

D) cause expulsion of milk during breastfeeding.

E) cause an erection of the penis when stimulated.

5. On a molecular level, all organisms

A) have the same bases in DNA and RNA, the same amino acids in proteins, but use different genetic codes.

B) use different means of storing genetic information.

C) have the same bases in DNA and RNA, but different amino acids in proteins.

D) have the same bases in DNA and RNA, the same amino acids in proteins, and use the same genetic code.

E) show no similarities.

6 .Up until the late eighteenth and early nineteenth centuries, many naturalists believed that all species of living organism(s) had been created separately and had remained unchanged since the creation. Around that time, scientific research provided findings that were contradictory to that idea. All of the following are findings that contradict the idea of a single creation. Choose the exception.

A) The limbs of some mammals serve the same purpose but their bone patterns are very different.

B) The platypus is only found in Australia and the dodo was only found on Madagascar.

C) Even though the limbs of various mammals carry out different functions (swimming, gliding, running, holding, etc.), the bone patterns are very similar.

D) Some fossils of extinct organisms are quite different from living organisms.

E) As scientists explored more of the earth, they found that different groups of organisms were found in the different regions.