Question

A researcher was observing a slide of Paramecium caudatum and a slide of Streptococcus faecalis. He labeled the first slide as eukaryote and the second as prokaryote and classified these two in separate kingdoms. What could be the reason for classifying these two organisms in separate kingdoms? A. Absence of cell organelles in Paramecium
B. Presence of a nucleus in Paramecium
C. Presence of a nucleus in Streptococcus

Answer 1

"Presence of a nucleus in Paramecium" is the reason among the choices given in the question for classifying these two organisms in separate kingdoms. The correct option among all the options that are given in the question is the second option or option "B". I hope the answer helps you.

Answer 2

Answer:

B. Presence of a nucleus in Paramecium.

Explanation:

Streptococcus are bacteria, which are classified in kingdom Monera. These are unicellular, prokaryotic organisms, in which true nucleus is not present as they lack membrane-bound organelles.

Paramecium is a protist, which belongs to kingdom Protista. They are unicellular, eukaryotic organisms, in which membrane-bound organelles, such as nucleus, endoplasmic reticulum and mitochondria are present.

Thus, the correct answer is option B.