Question 1

What is the vector of Lyme disease?

Accepted Answer

A) Rats 
B) Cattle 
C) Fleas 
D) Ticks 
A) Rats 
B) Cattle 
C) Fleas 
D) Ticks D

Question 2

Which statement is true regarding bacteria?

Accepted Answer

A) All pathogenic bacteria are harmful to humans. 
B) Most pathogenic bacteria are harmful to humans. 
C) Most pathogenic bacteria are helpful to humans. 
D) All pathogenic bacteria are helpful to humans. 
A) All pathogenic bacteria are harmful to humans. 
B) Most pathogenic bacteria are harmful to humans. 
C) Most pathogenic bacteria are helpful to humans. 
D) All pathogenic bacteria are helpful to humans. A

Question 3

Which of the following is a form of reproduction in bacteria?

Accepted Answer

A) Transformation 
B) Transduction 
C) Neither of these 
D) Both of these 
A) Transformation 
B) Transduction 
C) Neither of these 
D) Both of these C

Question 4

The "protists" are grouped together simply for convenience.Why are they not considered to be in a specific taxon like a kingdom or a phylum?

Accepted Answer

They evolved independently on

Question 5

What do scientists believe was the original genetic material able to copy itself without assistance?

Accepted Answer

A) DNA 
B) RNA 
C) Proteins 
D) Enzymes 
A) DNA 
B) RNA 
C) Proteins 
D) Enzymes

Question 6

Which viral life cycle would result in a quicker death for an infected cell?

Accepted Answer

A) Lytic cycle 
B) Prophage cycle 
C) Retroviral cycle 
D) Lysogenic cycle 
A) Lytic cycle 
B) Prophage cycle 
C) Retroviral cycle 
D) Lysogenic cycle

Question 7

When a plant cell divides,how would you expect its chloroplasts to divide?

Accepted Answer

A) Mitosis 
B) Meiosis 
C) Binary fission 
D) Endosymbiosis 
A) Mitosis 
B) Meiosis 
C) Binary fission 
D) Endosymbiosis

Question 8

Which organisms are called the extremophiles and flourish in extreme conditions?

Accepted Answer

A) Protozoans 
B) Archaea 
C) Bacteria 
D) Fungi 
A) Protozoans 
B) Archaea 
C) Bacteria 
D) Fungi

Question 9

Where would you find the double-stranded HIV DNA in an infected cell?

Accepted Answer

A) Incorporated directly into the host cell's chromosome 
B) As a separate plasmid in the host cell's nucleus 
C) In a vesicle in the cytoplasm 
D) There is no HIV form of DNA.It exists only as RNA which makes viral proteins directly. 
A) Incorporated directly into the host cell's chromosome 
B) As a separate plasmid in the host cell's nucleus 
C) In a vesicle in the cytoplasm 
D) There is no HIV form of DNA.It exists only as RNA which makes viral proteins directly.

Question 10

Approximately when did the earth's crust solidify?

Accepted Answer

A) 8 billion years ago 
B) 4 billion years ago 
C) 2 billion years ago 
D) 1 billion years ago 
A) 8 billion years ago 
B) 4 billion years ago 
C) 2 billion years ago 
D) 1 billion years ago

Question 11

Are all bacteria in a colony genetically identical?

Accepted Answer

A) No,some bacteria reproduce sexually and create novel offspring. 
B) No,there are ways for bacteria to acquire new genetic material. 
C) Yes,bacteria can only reproduce asexually. 
D) Yes,bacteria can only reproduce by binary fission. 
A) No,some bacteria reproduce sexually and create novel offspring. 
B) No,there are ways for bacteria to acquire new genetic material. 
C) Yes,bacteria can only reproduce asexually. 
D) Yes,bacteria can only reproduce by binary fission.

Question 12

Which was not a gas in Earth's earliest atmosphere?

Accepted Answer

A) O₂ 
B) CH₄ 
C) NH₃ 
D) H₂ 
A) O₂ 
B) CH₄ 
C) NH₃ 
D) H₂

Question 13

HIV,the virus that causes AIDS in humans,does not infect other animals,but only certain cells in the human body.Why?

Accepted Answer

The recognition spikes on the

Question 14

Which of the following do not get infected by viruses?

Accepted Answer

A) Animals 
B) Plants 
C) Bacteria 
D) All of these can be infected by viruses. 
A) Animals 
B) Plants 
C) Bacteria 
D) All of these can be infected by viruses.

Question 15

Which was first on the planet,prokaryotes or eukaryotes?

Accepted Answer

A) Eukaryotes 
B) Prokaryotes 
C) They both appear in the fossil record at about the same time. 
D) It is unknown. 
A) Eukaryotes 
B) Prokaryotes 
C) They both appear in the fossil record at about the same time. 
D) It is unknown.

Question 16

By what means do bacterial cells typically divide?

Accepted Answer

A) Binary fission 
B) Mitosis 
C) Meiosis 
D) Regeneration 
A) Binary fission 
B) Mitosis 
C) Meiosis 
D) Regeneration

Question 17

What is the strategy used by many prokaryotes for obtaining their energy and their molecular building blocks directly from inorganic chemicals?

Accepted Answer

A) Chemosynthetic 
B) Photosynthetic 
C) Parasitic 
D) Carnivory 
A) Chemosynthetic 
B) Photosynthetic 
C) Parasitic 
D) Carnivory

Question 18

Which version of "bacterial DNA transfer" involves a physical connection between the two bacteria cells?

Accepted Answer

A) Transformation 
B) Transduction 
C) Binary fission 
D) Conjugation 
A) Transformation 
B) Transduction 
C) Binary fission 
D) Conjugation

Question 19

What makes an organism truly multicellular?

Accepted Answer

A) When it forms a colony 
B) When different cells in the colony become specialized 
C) When the colony makes gametes 
D) When the colony makes other colonies 
A) When it forms a colony 
B) When different cells in the colony become specialized 
C) When the colony makes gametes 
D) When the colony makes other colonies

Question 20

Which specific cells are infected by the HIV virus?

Accepted Answer

A) Killer B cells 
B) Helper T cells 
C) Red blood cells 
D) NK cells 
A) Killer B cells 
B) Helper T cells 
C) Red blood cells 
D) NK cells

What is the vector of Lyme disease?

Which statement is true regarding bacteria?

Which of the following is a form of reproduction in bacteria?

The "protists" are grouped together simply for convenience.Why are they not considered to be in a specific taxon like a kingdom or a phylum?

What do scientists believe was the original genetic material able to copy itself without assistance?

Which viral life cycle would result in a quicker death for an infected cell?

When a plant cell divides,how would you expect its chloroplasts to divide?

Which organisms are called the extremophiles and flourish in extreme conditions?

Where would you find the double-stranded HIV DNA in an infected cell?

Approximately when did the earth's crust solidify?

Are all bacteria in a colony genetically identical?

Which was not a gas in Earth's earliest atmosphere?

HIV,the virus that causes AIDS in humans,does not infect other animals,but only certain cells in the human body.Why?

Which of the following do not get infected by viruses?

Which was first on the planet,prokaryotes or eukaryotes?

By what means do bacterial cells typically divide?

What is the strategy used by many prokaryotes for obtaining their energy and their molecular building blocks directly from inorganic chemicals?

Which version of "bacterial DNA transfer" involves a physical connection between the two bacteria cells?

What makes an organism truly multicellular?

Which specific cells are infected by the HIV virus?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters

Exam 8: Biodiversity 1: Microscopic Organisms

What is the vector of Lyme disease?

Which statement is true regarding bacteria?

Which of the following is a form of reproduction in bacteria?

The "protists" are grouped together simply for convenience.Why are they not considered to be in a specific taxon like a kingdom or a phylum?

What do scientists believe was the original genetic material able to copy itself without assistance?

Which viral life cycle would result in a quicker death for an infected cell?

When a plant cell divides,how would you expect its chloroplasts to divide?

Which organisms are called the extremophiles and flourish in extreme conditions?

Where would you find the double-stranded HIV DNA in an infected cell?

Approximately when did the earth's crust solidify?

Are all bacteria in a colony genetically identical?

Which was not a gas in Earth's earliest atmosphere?

HIV,the virus that causes AIDS in humans,does not infect other animals,but only certain cells in the human body.Why?

Which of the following do not get infected by viruses?

Which was first on the planet,prokaryotes or eukaryotes?

By what means do bacterial cells typically divide?

What is the strategy used by many prokaryotes for obtaining their energy and their molecular building blocks directly from inorganic chemicals?

Which version of "bacterial DNA transfer" involves a physical connection between the two bacteria cells?

What makes an organism truly multicellular?

Which specific cells are infected by the HIV virus?

An Introduction to the Science of Life

The Chemistry of Life

The Cell: The Fundamental Unit of Life

Energy and Life

Chromosomes and Inheritance

DNA: The Molecule of Life

Darwinian Evolution

Biodiversity 2: Fungi and Plants

Biodiversity 3: Animals

Human Body Systems

Ecology

Filters