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The first Eukaryotes to evolve are...

The first Eukaryotes to evolve are

A

Bryophytes

B

Green Algue

C

Blue-green Algae

D

Protistans

Text Solution

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The correct Answer is:
To determine the first eukaryotes to evolve, we can follow these steps: ### Step-by-Step Solution: 1. **Understanding Biological Classification**: - The classification system divides living organisms into different kingdoms. The first two kingdoms are Monera and Protista. 2. **Characteristics of Monera**: - Monera includes unicellular organisms that are prokaryotic. - Prokaryotes have a primitive cell structure and lack membrane-bound organelles. 3. **Characteristics of Protista**: - Protista also includes unicellular organisms, but they are eukaryotic. - Eukaryotes have a more complex cell structure with well-defined organelles, including membrane-bound organelles. 4. **Identifying the First Eukaryotes**: - Since Protista is the kingdom that includes eukaryotic organisms, it follows that the first eukaryotes to evolve would be found in this kingdom. 5. **Analyzing the Options**: - The options provided include bryophytes (which are plants), green algae (which are also considered plants), and blue-green algae (which are cyanobacteria and classified under Monera). - Since none of these options represent eukaryotes correctly except for Protista, we conclude that Protista is the correct answer. 6. **Final Answer**: - The first eukaryotes to evolve are classified under the kingdom Protista.
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$ Protists are unicellular eukaryotes. ! Eukaryotes do not have a nucleoid.