Question 1

If a public health official was trying to reduce the potential for human exposure to a "red tide" which of the following actions would they take?

Accepted Answer

A)  Place a ban on eating fish that were exposed to the dinoflagellate Alexandrium catanella
B)  Decrease the amount of nutrients that are washed into the aquatic ecosystem
C)  Avoid eating shellfish that live in coastal areas that have a high influx of nutrients
D)  All of the above would help reduce the potential for human exposure to a "red tide".E) B) and C)
F) A) and C)

Question 2

Saprolegnia,a ________,is feeding on the dead insect pictured here.This classifies it as a heterotrophic protist.

Accepted Answer

A)  slime mold
B)  ciliate
C)  water mold
D)  green algaeE) A) and D)
F) All of the above

Question 3

Which of the following alga is mismatched with its description?

Accepted Answer

A)  Chlamydomonas-unicellular
B)  Volvox-filamentous
C)  Ulva-multicellular
D)  Chara-multicellularE) B) and C)
F) B) and D)

Question 4

Which of the following protozoans is mismatched with the disease that it causes?

Accepted Answer

A)  Trypanosoma brucei-sleeping sickness
B)  Trichomonas vaginalis-vaginitis and urethritis
C)  Entamoeba histolytica-amoebic dysentery
D)  Giardia lamblia-malariaE) B) and C)
F) A) and D)

Question 5

A flagellated protist that is sexually transmitted is

Accepted Answer

A)  Plasmodium.
B)  Giardia.
C)  Entamoeba.
D)  Trichomonas.
E)  Paramecium.F) C) and D)
G) A) and C)

Question 6

Which is NOT a feature found in protozoans?

Accepted Answer

A)  heterotrophic
B)  multicellular
C)  usually motile
D)  eukaryoticE) A) and C)
F) B) and C)

Question 7

Amoebic dysentery is transmitted by (through)

Accepted Answer

A)  the bite of a mosquito.
B)  the bite of a tsetse fly.
C)  having sex with an infected partner.
D)  ingesting contaminated water or food.E) B) and C)
F) All of the above

Question 8

The reason biologists believe that green algae and land plants,both members of the supergroup Archaeplastida,are related is because both of them possess chlorophyll a & b as well as cell walls made of starch.

Accepted Answer

A) True 
 B)False

Question 9

A distinctive form of this pictured organism is found in each geologic period.Which statement(s) about this organism is/are true?

Accepted Answer

A)  The organisms pictured are foraminiferans,members of Supergroup Rhizarian and have a skeleton called a test.
B)  These organisms may be used as index fossils to date sedimentary rock.
C)  The Egyptian pyramids are built of this type of limestone.
D)  All of the above are true.
E)  The organisms pictured are foraminiferans,members of Supergroup Excavates.F) B) and E)
G) A) and C)

Question 10

Most Chromalveolates have the alternation of generations life cycle,but some species of Fungus have a diplontic life cycle.

Accepted Answer

A) True 
 B)False

Question 11

DNA sequencing suggests that among the green algae,the __________ are most closely related to land plants.

Accepted Answer

A)  Volvox
B)  Spirogyra
C)  Chara
D)  Ulva
E)  ChlamydomonasF) A) and E)
G) A) and D)

Question 12

Water molds are heterotrophic because they are parasitic on fish,plants,and insects.

Accepted Answer

A) True 
 B)False

Question 13

Which disease is mismatched with the incorrect causative agent?

Accepted Answer

A)  fish kills - dinoflagellate
B)  fish ick - a ciliate
C)  malaria - an amebozoan
D)  African sleeping sickness - a trypanosomeE) C) and D)
F) All of the above

Question 14

In Plasmodium,sexual reproduction occurs in the _________,while asexual reproduction occurs in ________.

Accepted Answer

A)  mosquito; humans
B)  humans; mosquitoes
C)  tsetse fly; humans
D)  deer tick; deerE) B) and C)
F) A) and D)

Question 15

It is believed that eukaryotes evolved their mitochondria from a symbiotic relationship with a free-living aerobic bacteria.

Accepted Answer

A) True 
 B)False

Question 16

Which of the characteristic(s) apply to the Supergroup Archaeplastida?

Accepted Answer

A)  They contain plastids that originated from endosymbiotic cyanobacteria.
B)  They include multicellular and unicellular organisms.
C)  They include land plants and the green algae,Chlorophyta.
D)  All of the above apply.
E)  They include only multicellular organisms that contain plastids.F) C) and D)
G) B) and E)

Question 17

Imagine you are working for the Florida Public Health Department and you have been assigned the task of preventing malaria from spreading throughout the southern Everglades.Which of the following scenarios would have the greatest chance of success?

Accepted Answer

A)  Spraying the edges of the Everglades with a pesticide that will kill mosquitos
B)  Developing a vaccination that would prevent the ability of the merozoites to reproduce within the hosts bloodstream
C)  Devise a insect repellant that would prevent the Anopheles mosquito from biting a human host
D)  All of the above are scenarios that would have a chance of success in preventing malaria from spreading throughout the southern Everglades.E) A) and B)
F) A) and C)

Question 18

Chromalveolates that live along the rocky shores of the north temperate zones are able to withstand pounding tides and drying because of their holdfasts and mucilaginous cell walls.

Accepted Answer

A) True 
 B)False

Question 19

Which of the following pairs of Protists would be most closely related due to both of them possessing plastids?

Accepted Answer

A)  Archaeplastids & Rhizaria
B)  Archaeplastids & Chromalveolata
C)  Rhizaria & Chromalveolata
D)  Amoebozoa & ExcavataE) A) and D)
F) B) and C)

Question 20

Which protist is NOT correctly linked to the type of movement it shows?

Accepted Answer

A)  amoeboids-pseudopodia
B)  ciliates--cilia
C)  zooflagellates-flagella
D)  sporozoan-flexing the pellicleE) A) and B)
F) B) and D)

Exam 21: Protist Evolution and Diversity

Which protist is NOT correctly linked to the type of movement it shows?

Correct AnswerverifiedShow Answer

The reason biologists believe that green algae and land plants,both members of the supergroup Archaeplastida,are related is because both of them possess chlorophyll a & b as well as cell walls made of starch.

Correct AnswerverifiedShow Answer

Saprolegnia,a ________,is feeding on the dead insect pictured here.This classifies it as a heterotrophic protist.

Correct AnswerverifiedShow Answer

DNA sequencing suggests that among the green algae,the __________ are most closely related to land plants.

Correct AnswerverifiedShow Answer

Which of the following pairs of Protists would be most closely related due to both of them possessing plastids?

Correct AnswerverifiedShow Answer

A distinctive form of this pictured organism is found in each geologic period.Which statement(s) about this organism is/are true?

Correct AnswerverifiedShow Answer

Which disease is mismatched with the incorrect causative agent?

Correct AnswerverifiedShow Answer

Which is NOT a feature found in protozoans?

Correct AnswerverifiedShow Answer

Chromalveolates that live along the rocky shores of the north temperate zones are able to withstand pounding tides and drying because of their holdfasts and mucilaginous cell walls.

Correct AnswerverifiedShow Answer

Water molds are heterotrophic because they are parasitic on fish,plants,and insects.

Correct AnswerverifiedShow Answer

It is believed that eukaryotes evolved their mitochondria from a symbiotic relationship with a free-living aerobic bacteria.

Correct AnswerverifiedShow Answer

In Plasmodium,sexual reproduction occurs in the _________,while asexual reproduction occurs in ________.

Correct AnswerverifiedShow Answer

Which of the following alga is mismatched with its description?

Correct AnswerverifiedShow Answer

Amoebic dysentery is transmitted by (through)

Correct AnswerverifiedShow Answer

Imagine you are working for the Florida Public Health Department and you have been assigned the task of preventing malaria from spreading throughout the southern Everglades.Which of the following scenarios would have the greatest chance of success?

Correct AnswerverifiedShow Answer

If a public health official was trying to reduce the potential for human exposure to a "red tide" which of the following actions would they take?

Correct AnswerverifiedShow Answer

Most Chromalveolates have the alternation of generations life cycle,but some species of Fungus have a diplontic life cycle.

Correct AnswerverifiedShow Answer

A flagellated protist that is sexually transmitted is

Correct AnswerverifiedShow Answer

Which of the characteristic(s) apply to the Supergroup Archaeplastida?

Correct AnswerverifiedShow Answer

Which of the following protozoans is mismatched with the disease that it causes?

Correct AnswerverifiedShow Answer

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In Plasmodium,sexual reproduction occurs in the _,while asexual reproduction occurs in .

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