Figure 29.2

-Refer to Figure 29.2 and consider the following data:
Brown algae (protists)include unicellular and multicellular organisms.Red algae (protists)include unicellular and multicellular organisms.Amoebae (protists)include unicellular and multicellular organisms.Which of the following conclusions is consistent with the data presented?
A)Multicellularity is a synapomorphy that defines a eukaryote.
B)Multicellularity evolved once;thus,animals are derived from the most recently evolved protists.
C)Multicellularity evolved multiple times as eukaryotes diversified.
D)Multicellularity is more adaptive than unicellularity.

Question

Figure 29.2
 
-Refer to Figure 29.2 and consider the following data:
Brown algae (protists)include unicellular and multicellular organisms.Red algae (protists)include unicellular and multicellular organisms.Amoebae (protists)include unicellular and multicellular organisms.Which of the following conclusions is consistent with the data presented?
A)Multicellularity is a synapomorphy that defines a eukaryote. 
B)Multicellularity evolved once;thus,animals are derived from the most recently evolved protists. 
C)Multicellularity evolved multiple times as eukaryotes diversified. 
D)Multicellularity is more adaptive than unicellularity.

Quizplus · Accepted Answer

The data shows that brown algae, red algae, and amoebae are all protists that include both unicellular and multicellular organisms. Therefore, multicellularity did not evolve only once in the eukaryotic lineage, but instead evolved multiple times as eukaryotes diversified.

Figure 29.2 -Refer to Figure 29.2 and Consider the Following Data