Question 1

Classification.Answer the questions using the five groups of prokaryotes listed below.
 a.halophiles
b.cyanobacteria
c.thermophiles
d.bacteria
e.methanogens
-These have parasitic members.

Accepted Answer

The answer of Classification.Answer the questions using the five groups...

Question 2

What is a plant's main line of defense against viral infection?

Accepted Answer

A)  immune system cells 
B)  viral toxins within the central vacuole 
C)  membrane proteins that latch onto virus particles 
D)  a thick cell wall that prevents viral entry 
E)  a nuclear membrane that is impermeable to viruses

Question 3

According to scientific evidence,early life could NOT form or persist in the presence of

Accepted Answer

A)  methane gas. 
B)  hydrogen gas. 
C)  oxygen gas. 
D)  water vapor. 
E)  carbon dioxide.

Question 4

Which of the following obtain energy from light and carbon from organic sources?

Accepted Answer

A)  photoautotrophs 
B)  chemoautotrophs. 
C)  photoheterotrophs.. 
D)  photoautotrophs, 
E)  more than one of these

Question 5

____ must have been the first eukaryotic cells.

Accepted Answer

A)  Archaea 
B)  Bacteria 
C)  Protists 
D)  Fungi 
E)  Microplants

Question 6

Which of the following elements may have been the ancestors of cellular life?

Accepted Answer

A)  circular RNA 
B)  prokaryotic cells 
C)  pseudocells 
D)  lipid globules 
E)  protocells

Question 7

Which of the following is an HIV enzyme essential for its successful replication in a host cell?

Accepted Answer

A)  reverse transcriptase 
B)  RNA polymerase 
C)  DNA polymerase 
D)  protease 
E)  ligase

Question 8

Which of the following forms of Plasmodium infects human red blood cells?

Accepted Answer

A)  merozoites 
B)  gametocytes 
C)  cysts 
D)  sporozoites 
E)  spores

Question 9

Which of the following protists may cause dysentery after drinking contaminated water?

Accepted Answer

A)  dinoflagellates 
B)  apicomplexans 
C)  amoebas 
D)  ciliates 
E)  water molds

Question 10

The planets of our solar system were formed by the collisions of ____.

Accepted Answer

A)  meteors 
B)  asteroids 
C)  comets 
D)  moons 
E)  existing planets

Question 11

Which of the following elements is (are)likely to provide hints about earth's early atmosphere?

Accepted Answer

A)  ancient rocks 
B)  volcanic eruptions 
C)  ancient rocks and volcanic eruptions 
D)  meteorites and ancient rocks 
E)  meteorites, volcanic eruptions, and ancient rocks

Question 12

Classification.Answer the questions using the five groups of protistans listed below.
a.apicomplexans
b.amoebas
c.euglenoids
d.dinoflagellates
e.trypanosomes
-These possess an eyespot for detecting light needed for photosynthesis.

Accepted Answer

The answer of Classification.Answer the questions using the five groups...

Question 13

Which of the following viral components is NOT typical of a plant virus?

Accepted Answer

A)  RNA 
B)  protein coat 
C)  helical structure 
D)  viral envelope 
E)  more than one of these is NOT typical of a plant virus

Question 14

Which of the following statements is true of foraminiferans?

Accepted Answer

A)  Most foraminiferans live on the sea floor. 
B)  Foraminiferans are single-celled predators. 
C)  The planktonic foraminiferans often have photosynthetic protists living in their cytoplasm. 
D)  Foraminiferans secrete a shell containing calcium carbonate. 
E)  All of these are true of foraminiferans.

Question 15

Classification.Answer the questions using the five groups of protistans listed below.
a.apicomplexans
b.amoebas
c.euglenoids
d.dinoflagellates
e.trypanosomes
-These have no cell wall,shell,or constrictive pellicle to prevent a change in shape.

Accepted Answer

The answer of Classification.Answer the questions using the five groups...

Question 16

Four of the five answers listed below are bacteria structures.Select the EXCEPTION.

Accepted Answer

A)  cell wall 
B)  pili 
C)  flagella 
D)  cilia 
E)  plasmid

Question 17

Which of the following allow the bacteria to join together to transfer genes?

Accepted Answer

A)  flagella 
B)  spores 
C)  capsules 
D)  pili 
E)  cilia

Question 18

The process by which bacteria evolved into mitochondria is most closely related to

Accepted Answer

A)  endocytosis. 
B)  exocytosis. 
C)  phagocytosis. 
D)  binary fission. 
E)  more than one of these.

Question 19

Match the following letters with the number with which they best correspond.
 a.protist
b.prokaryote
c.photoautotroph
d.pathogen
e.protocell
f.halophile
g.antibiotic
-cell with no membrane bound nucleus

Accepted Answer

The answer of Match the following letters with the number...

Question 20

Classification.Answer the questions using the five groups of prokaryotes listed below.
 a.halophiles
b.cyanobacteria
c.thermophiles
d.bacteria
e.methanogens
-These produce methane.

Accepted Answer

The answer of Classification.Answer the questions using the five groups...

Exam 13: Early Life Forms and the Viruses

Classification.Answer the questions using the five groups of prokaryotes listed below. a.halophiles b.cyanobacteria c.thermophiles d.bacteria e.methanogens -These have parasitic members.

What is a plant's main line of defense against viral infection?

According to scientific evidence,early life could NOT form or persist in the presence of

Which of the following obtain energy from light and carbon from organic sources?

____ must have been the first eukaryotic cells.

Which of the following elements may have been the ancestors of cellular life?

Which of the following is an HIV enzyme essential for its successful replication in a host cell?

Which of the following forms of Plasmodium infects human red blood cells?

Which of the following protists may cause dysentery after drinking contaminated water?

The planets of our solar system were formed by the collisions of ____.

Which of the following elements is (are) likely to provide hints about earth's early atmosphere?

Classification.Answer the questions using the five groups of protistans listed below. a.apicomplexans b.amoebas c.euglenoids d.dinoflagellates e.trypanosomes -These possess an eyespot for detecting light needed for photosynthesis.

Which of the following viral components is NOT typical of a plant virus?

Which of the following statements is true of foraminiferans?

Classification.Answer the questions using the five groups of protistans listed below. a.apicomplexans b.amoebas c.euglenoids d.dinoflagellates e.trypanosomes -These have no cell wall,shell,or constrictive pellicle to prevent a change in shape.

Four of the five answers listed below are bacteria structures.Select the EXCEPTION.

Which of the following allow the bacteria to join together to transfer genes?

The process by which bacteria evolved into mitochondria is most closely related to

Match the following letters with the number with which they best correspond. a.protist b.prokaryote c.photoautotroph d.pathogen e.protocell f.halophile g.antibiotic -cell with no membrane bound nucleus

Classification.Answer the questions using the five groups of prokaryotes listed below. a.halophiles b.cyanobacteria c.thermophiles d.bacteria e.methanogens -These produce methane.