Question 1

Which of the following best describes a protist?

Accepted Answer

A mostly unicellular eukaryote found in aquatic or moist habitats

Question 2

Which supergroup contains organisms most closely related to animals?

Accepted Answer

Unikonta

Question 3

Which of the following is an example of a mixotrophic protist?

Accepted Answer

Euglena

Question 4

A red tide, which can cause massive fish kills, is most often caused by which group of protists?

Accepted Answer

Dinoflagellates

Question 5

Which of the following statements about the SAR supergroup is correct?

Accepted Answer

It includes Stramenopila, Alveolata, and Rhizaria

Question 6

Which protist is responsible for African sleeping sickness and what is a key feature of its group?

Accepted Answer

Trypanosoma; modified mitochondria

Question 7

Which of the following best explains why multicellularity evolved multiple times in eukaryotes?

Accepted Answer

Increased complexity allowed for specialized cell functions

Question 8

Which of the following is NOT a member of the Archaeplastida supergroup?

Accepted Answer

Brown algae

Question 9

The alternation of generations in algae involves which two stages?

Accepted Answer

Haploid gametophyte and diploid sporophyte

Question 10

Which of the following is a characteristic of amoebozoans?

Accepted Answer

Lobe-shaped pseudopodia

Question 11

A scientist discovers a unicellular organism with an excavated feeding groove and modified mitochondria. Which group does it most likely belong to?

Accepted Answer

Excavata

Question 12

Which of the following best describes the nutritional diversity of protists?

Accepted Answer

They can be autotrophic, heterotrophic, or mixotrophic

Question 13

Which protist group includes organisms that form extensive kelp forests in marine environments?

Accepted Answer

Stramenopila

Question 14

Which of the following is a real-world consequence of a dinoflagellate bloom?

Accepted Answer

Massive fish kills due to red tides

Question 15

Which of the following equations correctly represents the alternation of generations in algae?

Accepted Answer

$$n \xrightarrow{mitosis} n ($$gametophyte produces gametes) $$\xrightarrow{fertilization} 2n ($$sporophyte) $$\xrightarrow{meiosis} n ($$spores)$

Question 16

Which of the following is a key evolutionary advantage of multicellularity?

Accepted Answer

Specialization of cells for different functions

Question 17

Which of the following protist groups is most closely related to land plants?

Accepted Answer

Green algae (Archaeplastida)

Question 18

Which of the following best describes the structure of a plasmodial slime mold?

Accepted Answer

A single cytoplasmic mass with many nuclei

Question 19

Which of the following is a distinguishing feature of foraminiferans?

Accepted Answer

Porous shells made of calcium carbonate

Protist Diversity and Evolution: Study Notes for General Biology

Guida di studio - Domande di pratica