~!FREE 5 POINTS + HELP ON 2.6.7: PROTISTS!~ Multiple choice
1 - What is one reason why the classification of protists in one kingdom is difficult?
Incorrect A. Some protists are unicellular while other protists are multicellular.
CORRECTB. Protists more closely resemble members of other eukaryotic kingdoms than they do other protists.
incorrectC. Protists may be funguslike, plantlike, or animal-like, but they do not have characteristics of more than one of these groups.
Incorrect D. Because they are unicellular, protists fit better in the two domains of prokaryotes.

2 -
Figure 21-1

Based on Figure 21-1, which of the major groups of protists is MOST closely related to plants?
Incorrect answerA. Amoebozoa
Incorrect answerB. Excavates
CORRECTC. Rhodophyta
Incorrect answerD. Choanozoa

3 - Which of the following analogies best describes the motion of a nonmotile protist?
Incorrect answerA. A boat is moved forward by several oars.
CORRECTB. A boat is moved forward by a current.
Incorrect answerC. A boat is moved forward by a single long oar.
Incorrect answerD. A boat is moved forward by a motor.

4 - Which structure of a paramecium holds a “reserve copy” of all the cell’s genes?
CORRECTA. the micronucleus
Incorrect answerB. the zygote
Incorrect answerC. the sporangium
Incorrect answerD. the macronucleus

5 - Many protists alternate between diploid and haploid stages during their life cycle in a process known as
CORRECTA. alternation of generations.
Incorrect answerB. conjugation.
Incorrect answerC. sexual reproduction.
Incorrect answerD. asexual reproduction.

6 - How are phytoplankton important to whales?
CORRECTA. They are eaten by some whales.
Incorrect answerB. They provide calcium carbonate for whales.
Incorrect answerC. They provide the whales with shelter.
Incorrect answerD. They recycle wastes into materials whales can eat.

7 - Which of the following events might lead to an algal bloom?
CORRECTA. Nitrogen-rich fertilizer washes off of fields into the ocean.
Incorrect answerB. Oxygen is removed from ocean water by decomposition.
Incorrect answerC. New sewage plants remove more wastes from discharge.
Incorrect answerD. The population of baleen whales increases.

8 - When the amoebas of slime molds join, they form structures with many nuclei called
CORRECTA. plasmodia.
Incorrect answerB. sporangia.
Incorrect answerC. spores.
Incorrect answerD. zygotes.

9 - Ciliates get food by
Incorrect answerA. surrounding a cell or particle and taking it inside themselves.
Incorrect answerB. absorbing molecules from the environment through their cell membranes.
Incorrect answerC. forming a plasmodium in order to get food.
CORRECT D. sweeping food particles into their gullet.

10 - Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes?
Incorrect answerA. amoebas
CORRECTB. water molds
Incorrect answerC. ciliates
Incorrect answerD. slime molds

1 - What is one reason why the classification of protists in one kingdom is difficult?

Incorrect A. Some protists are unicellular while other protists are multicellular.

CORRECT B. Protists more closely resemble members of other eukaryotic kingdoms than they do other protists.

incorrect C. Protists may be funguslike, plantlike, or animal-like, but they do not have characteristics of more than one of these groups.

Incorrect D. Because they are unicellular, protists fit better in the two domains of prokaryotes.

2 -

Figure 21-1

Based on Figure 21-1, which of the major groups of protists is MOST closely related to plants?

Incorrect answer A. Amoebozoa

Incorrect answer B. Excavates

CORRECT C. Rhodophyta

Incorrect answer D. Choanozoa

3 - Which of the following analogies best describes the motion of a nonmotile protist?

Incorrect answer A. A boat is moved forward by several oars.

CORRECT B. A boat is moved forward by a current.

Incorrect answer C. A boat is moved forward by a single long oar.

Incorrect answer D. A boat is moved forward by a motor.

4 - Which structure of a paramecium holds a “reserve copy” of all the cell’s genes?

CORRECT A. the micronucleus

Incorrect answer B. the zygote

Incorrect answer C. the sporangium

Incorrect answer D. the macronucleus

5 - Many protists alternate between diploid and haploid stages during their life cycle in a process known as

CORRECT A. alternation of generations.

Incorrect answer B. conjugation.

Incorrect answer C. sexual reproduction.

Incorrect answer D. asexual reproduction.

6 - How are phytoplankton important to whales?

CORRECT A. They are eaten by some whales.

Incorrect answer B. They provide calcium carbonate for whales.

Incorrect answer C. They provide the whales with shelter.

Incorrect answer D. They recycle wastes into materials whales can eat.

7 - Which of the following events might lead to an algal bloom?

CORRECT A. Nitrogen-rich fertilizer washes off of fields into the ocean.

Incorrect answer B. Oxygen is removed from ocean water by decomposition.

Incorrect answer C. New sewage plants remove more wastes from discharge.

Incorrect answer D. The population of baleen whales increases.

8 - When the amoebas of slime molds join, they form structures with many nuclei called

CORRECT A. plasmodia.

Incorrect answer B. sporangia.

Incorrect answer C. spores.

Incorrect answer D. zygotes.

9 - Ciliates get food by

Incorrect answer A. surrounding a cell or particle and taking it inside themselves.

Incorrect answer B. absorbing molecules from the environment through their cell membranes.

Incorrect answer C. forming a plasmodium in order to get food.

CORRECT D. sweeping food particles into their gullet.

10 - Which of the following protists gets nutrients mainly by absorbing molecules from other organisms through their cell walls and cell membranes?

Incorrect answer A. amoebas

CORRECT B. water molds

Incorrect answer C. ciliates

Incorrect answer D. slime molds

Explanation:

cuz they cant breath

explanation: