Biological-Classification-And-System-Of-Classification Question 888
Question: First organisms to evolve on the earth were [CBSE PMT 2001]
Options:
A) Saprotrophs
B) Chemohetrotrophs
C) Photoautotrophs
D) Chemoautotrophs
Show Answer
Answer:
Correct Answer: B
Solution:
The first organisms to evolve on Earth are generally thought to be chemoheterotrophs. These early organisms obtained energy by consuming organic molecules available in their environment, rather than producing their own energy through photosynthesis or chemosynthesis.
BETA
