Question 1

Fungi and animals are similar because they both

Accepted Answer

A) are phototrophs. 
B) have cell walls made of chitin. 
C) are heterotrophs. 
D) use starch as their main storage carbohydrate. 
E) are decomposers. 
A) are phototrophs. 
B) have cell walls made of chitin. 
C) are heterotrophs. 
D) use starch as their main storage carbohydrate. 
E) are decomposers.

Question 2

All protists

Accepted Answer

A) are prokaryotes. 
B) lack a nucleus. 
C) lack membrane-bounded organelles. 
D) are eukaryotes. 
E) are multicellular. 
A) are prokaryotes. 
B) lack a nucleus. 
C) lack membrane-bounded organelles. 
D) are eukaryotes. 
E) are multicellular.

Question 3

Chlamydomonas is unicellular and photosynthetic.Chlamydomonas is which of the following?

Accepted Answer

A) a slime mold 
B) an apicomplexan 
C) an amoeba 
D) a protozoan 
E) a green alga 
A) a slime mold 
B) an apicomplexan 
C) an amoeba 
D) a protozoan 
E) a green alga

Question 4

What feature do all protists share?

Accepted Answer

A) mode of locomotion 
B) method of food consumption 
C) method of obtaining energy 
D) mode of reproduction 
E) None of the answers are correct. 
A) mode of locomotion 
B) method of food consumption 
C) method of obtaining energy 
D) mode of reproduction 
E) None of the answers are correct.

Question 5

Which of the following is true of prokaryotes?

Accepted Answer

A) Prokaryotes have a nucleus. 
B) Prokaryotes are single-celled. 
C) Prokaryotes do not have a chromosome. 
D) Prokaryotes have membrane-bounded organelles. 
E) Prokaryotes do not have ribosomes. 
A) Prokaryotes have a nucleus. 
B) Prokaryotes are single-celled. 
C) Prokaryotes do not have a chromosome. 
D) Prokaryotes have membrane-bounded organelles. 
E) Prokaryotes do not have ribosomes.

Question 6

Slime molds may exist as either single amoeboid cells or large masses of cells that behave as one multicellular organism.

Accepted Answer

A) True 
 B)False

Question 7

Which is the best description of the mutual benefit to both species found in a lichen?

Accepted Answer

A) The autotroph provides food and the heterotroph provides water and minerals. 
B) The autotroph prevents dehydration and the heterotroph provides energy. 
C) The autotroph provides water and minerals and the heterotroph prevents dehydration. 
D) The heterotroph protects the autotroph from predation. 
E) The autotroph produces antibiotics to ward off infection to the heterotroph by bacteria. 
A) The autotroph provides food and the heterotroph provides water and minerals. 
B) The autotroph prevents dehydration and the heterotroph provides energy. 
C) The autotroph provides water and minerals and the heterotroph prevents dehydration. 
D) The heterotroph protects the autotroph from predation. 
E) The autotroph produces antibiotics to ward off infection to the heterotroph by bacteria.

Question 8

Heterotrophs must acquire carbon from organic molecules produced from other organisms.

Accepted Answer

A) True 
 B)False

Question 9

Why do scientists hypothesize that RNA was the first form of genetic material?

Accepted Answer

A) All answers are correct. 
B) RNA can catalyze reactions. 
C) RNA can store genetic information. 
D) RNA can self-replicate. 
E) RNA can use genetic information to make proteins. 
A) All answers are correct. 
B) RNA can catalyze reactions. 
C) RNA can store genetic information. 
D) RNA can self-replicate. 
E) RNA can use genetic information to make proteins.

Question 10

A prokaryote that occupies a habitat consisting of a low pH is a(an)

Accepted Answer

A) thermophile. 
B) halophile. 
C) basophile. 
D) acidophile. 
E) hydrophilE. 
A) thermophile. 
B) halophile. 
C) basophile. 
D) acidophile. 
E) hydrophilE.

Question 11

During a malaria infection,Plasmodium falciparum grow inside of human cells as

Accepted Answer

A) autotrophs. 
B) heterotrophs. 
C) phototrophs. 
D) heterotrophs and autotrophs. 
E) autotrophs and phototrophs. 
A) autotrophs. 
B) heterotrophs. 
C) phototrophs. 
D) heterotrophs and autotrophs. 
E) autotrophs and phototrophs.

Question 12

The endoplasmic reticulum,Golgi body,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

Accepted Answer

A) True 
 B)False

Question 13

An organism to which oxygen is toxic is an obligate anaerobe.

Accepted Answer

A) True 
 B)False

Question 14

The first multicellular organisms probably arose about

Accepted Answer

A) 1.2 billion years ago. 
B) 500 million years ago. 
C) two billion years ago. 
D) 3.5 billion years ago. 
E) six billion years ago. 
A) 1.2 billion years ago. 
B) 500 million years ago. 
C) two billion years ago. 
D) 3.5 billion years ago. 
E) six billion years ago.

Question 15

African sleeping sickness is caused by Trypanosoma brucei,a unicellular,flagellated protist that infects red blood cells after entering the bloodstream.African sleeping sickness is transmitted by

Accepted Answer

A) ingesting food. 
B) contaminated water. 
C) sexual intercourse. 
D) the bite of an insect. 
E) exhaled aerosols. 
A) ingesting food. 
B) contaminated water. 
C) sexual intercourse. 
D) the bite of an insect. 
E) exhaled aerosols.

Question 16

Trichonympha is a unicellular,flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Accepted Answer

A) an autotroph 
B) a heterotroph and autotroph 
C) a detritivore 
D) a heterotroph 
E) a heterotroph and detritovore 
A) an autotroph 
B) a heterotroph and autotroph 
C) a detritivore 
D) a heterotroph 
E) a heterotroph and detritovore

Question 17

Endophyte translates to "inside plant" and refers to which of the following?

Accepted Answer

A) bacteria that live inside of plants and help protect plants from disease-causing organisms 
B) fungi that live inside of plants and produce oxygen for the plant 
C) bacteria that live inside of plants and produce carbon dioxide for the plant 
D) fungi that live inside of plants and help protect plants from disease-causing organisms 
E) protozoans that live within plant cells and kill invading microorganisms 
A) bacteria that live inside of plants and help protect plants from disease-causing organisms 
B) fungi that live inside of plants and produce oxygen for the plant 
C) bacteria that live inside of plants and produce carbon dioxide for the plant 
D) fungi that live inside of plants and help protect plants from disease-causing organisms 
E) protozoans that live within plant cells and kill invading microorganisms

Question 18

In the section "Investigating Life: The Battle for Position in Cacao Tree Leaves",what was the dependent variable?

Accepted Answer

A) the age of the leaf 
B) the percent of the leaf area damaged 
C) the presence or absence of endophyte spores 
D) the presence or absence of the pathogen Phytophthora 
E) the percent of the leaf area containing endophytes 
A) the age of the leaf 
B) the percent of the leaf area damaged 
C) the presence or absence of endophyte spores 
D) the presence or absence of the pathogen Phytophthora 
E) the percent of the leaf area containing endophytes

Question 19

Cyanobacteria are phototrophic.Which of the following would they also be considered?

Accepted Answer

A) heterotrophic 
B) autotrophic 
C) chemotrophic 
D) obligate anaerobes 
E) aerobic 
A) heterotrophic 
B) autotrophic 
C) chemotrophic 
D) obligate anaerobes 
E) aerobic

Question 20

African sleeping sickness is caused by Trypanosoma brucei,a unicellular,flagellated protist that infects red blood cells after entering the bloodstream.Trypanosoma brucei is which of the following?

Accepted Answer

A) an alga 
B) a protozoan 
C) a slime mold 
D) a diatom 
E) a water mold 
A) an alga 
B) a protozoan 
C) a slime mold 
D) a diatom 
E) a water mold

Exam 15: Evolution and Diversity of Microbial Life

Fungi and animals are similar because they both

All protists

Chlamydomonas is unicellular and photosynthetic.Chlamydomonas is which of the following?

What feature do all protists share?

Which of the following is true of prokaryotes?

Slime molds may exist as either single amoeboid cells or large masses of cells that behave as one multicellular organism.

Which is the best description of the mutual benefit to both species found in a lichen?

Heterotrophs must acquire carbon from organic molecules produced from other organisms.

Why do scientists hypothesize that RNA was the first form of genetic material?

A prokaryote that occupies a habitat consisting of a low pH is a(an)

During a malaria infection,Plasmodium falciparum grow inside of human cells as

The endoplasmic reticulum,Golgi body,and other membranous organelles of cells might have formed by numerous infoldings of the cell's outer membrane.

An organism to which oxygen is toxic is an obligate anaerobe.

The first multicellular organisms probably arose about

African sleeping sickness is caused by Trypanosoma brucei,a unicellular,flagellated protist that infects red blood cells after entering the bloodstream.African sleeping sickness is transmitted by

Trichonympha is a unicellular,flagellated protist that lives within termites and allows the termite to be able to "digest" wood.Trichonympha is which of the following?

Endophyte translates to "inside plant" and refers to which of the following?

In the section "Investigating Life: The Battle for Position in Cacao Tree Leaves",what was the dependent variable?

Cyanobacteria are phototrophic.Which of the following would they also be considered?

African sleeping sickness is caused by Trypanosoma brucei,a unicellular,flagellated protist that infects red blood cells after entering the bloodstream.Trypanosoma brucei is which of the following?

Scientific Study of Life

The Chemistry of Life

Cells

The Energy of Life

Photosynthesis

How Cells Release Energy

DNA Structure and Gene Function

DNA Replication and Cell Division

Sexual Reproduction and Meiosis

Patterns of Inheritance

DNA Technology

Forces of Evolutionary Change

Evidence of Evolution

Speciation and Extinction

Evolution and Diversity of Plants

Evolution and Diversity of Animals

Population Ecology

Communities and Ecosystems

Preserving Biodiversity

Plant Form and Function

Reproduction and Development of Flowering Plants

Animal Tissues and Organ Systems

Nervous System and the Senses

The Endocrine System

The Skeletal and Muscular Systems

The Circulatory and Respiratory Systems

Regulating Temperature, nutrients, and Body Fluids

The Immune System

Animal Reproduction and Development

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