Consider the following data:
(a) Most ancient eukaryotes are unicellular.
(b) All eukaryotes alive today have a nucleus and cytoskeleton.
(c) Most ancient eukaryotes lack a cell wall. Which of the following conclusions could reasonably follow the data presented? The first eukaryote may have been ________.
A) very similar to a plant cell
B) anaerobic
C) capable of phagocytosis
D) photosynthetic

Question

Quizplus · Accepted Answer

Since most ancient eukaryotes lacked a cell wall, it suggests they were capable of phagocytosis, which requires the cell to be able to change its shape and form temporary pseudopodia to engulf prey. This is a characteristic present in many unicellular eukaryotes today. While the first eukaryote may have had similar features to plant cells, it cannot be concluded with certainty based on the given data. There is no evidence to suggest that the first eukaryote was anaerobic or photosynthetic.

Consider the Following Data