Question 1

Of those listed below,which category of classification is the most narrow?

Accepted Answer

A) Class 
B) Domain 
C) Family 
D) Genus

Question 2

A requirement of cladistics is that a grouping must include ________.

Accepted Answer

A) species that can interbreed 
B) only living species 
C) species with shared traits 
D) a common ancestor and all its descendants

Question 3

Others had suggested mechanisms for evolution before Darwin published his work.By what means did Darwin propose species evolved over time?

Accepted Answer

A) Overproduction of young 
B) Passing on acquired traits 
C) Survival of the strongest 
D) Natural selection

Question 4

What is the smallest unit that can evolve?

Accepted Answer

A) The community 
B) The population 
C) The individual 
D) The cell

Question 5

Individuals with variations that make them best suited to their environment will,on average,be more likely to ________.

Accepted Answer

A) evolve 
B) change over time 
C) survive and reproduce 
D) be larger

Question 6

What is the leading hypothesis for what might have brought about the extinction of the dinosaurs?

Accepted Answer

A) A new disease 
B) Competition from mammals 
C) An asteroid impact 
D) Massive volcano eruptions

Question 7

Certain traits will have been lost from the gene pool forever.Some may be obvious,like people with red hair or double jointed thumbs.Others will be less obvious,like the ability to process cholesterol or being allergic to peanuts.This loss of diversity in a reduced population is called ________.

Accepted Answer

A) gene flow 
B) genetic drift 
C) bottleneck effect 
D) founder effect

Question 8

The modern evolutionary synthesis of the 1930s and 1940s melded together evolutionary theory with ________.

Accepted Answer

A) genetics 
B) sociology 
C) psychology 
D) chemistry

Question 9

Can you inherit physical traits that your parents acquired during their lifetime?

Accepted Answer

A) No 
B) Yes 
C) Only if it improves survivability 
D) Only if it improves reproductive success

Question 10

Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ________.

Accepted Answer

A) outgrouping 
B) relativistic physiology 
C) comparative anatomy 
D) analogous reconstruction

Question 11

What events can lead to offspring having a unique arrangement of their parents' genes?

Accepted Answer

A) Crossing over 
B) Independent assortment 
C) Both of these 
D) Neither of these

Question 12

Which of the following might be a cause of sympatric speciation?

Accepted Answer

A) Habitat isolation 
B) Genetic incompatibility 
C) Genetic drift 
D) Gene flow

Question 13

Which two observations led Darwin to conclude that there is competition for survival?

Accepted Answer

A) Overproduction and limited resources 
B) Fossils and mutations 
C) Variability and heritability 
D) Natural selection and descent with modification

Question 14

Which grouping immediately follows Order in the classification hierarchy?

Accepted Answer

A) Genus 
B) Family 
C) Phylum 
D) Class

Question 15

All prokaryotes are in the domain ________.

Accepted Answer

A) Bacteria 
B) Prokarya 
C) Eukarya 
D) Prokaryotes are in different domains.

Question 16

During which geological era did life first appear on the planet?

Accepted Answer

A) Precambrian 
B) Paleozoic 
C) Mesozoic 
D) Cenozoic

Exam 7: Darwinian Evolution