Which of these groups
of animals appeared on
Earth most recently?

A. Reptiles
B. Amphibians
C. Mammals
D. Fish

Respuesta :

Answer: It’s C :)

Explanation:

The most recent groups  of animals appeared on Earth among given choices is the - option C. Mammals

Different organisms appeared in different time periods on the geological time scale on the earth. We know that prokaryotes are the most ancient organisms about 3.5 - 3.8 billion years ago then due to the presence of oxygen photosynthetic organisms appeared 3 billion years ago, 2 billion years to eukaryotic cells, and 1 billion years of multicellular life.

 Fossils studies help in finding the time scale of the organism that appeared or was extinct on the earth.

Earth includes the evolution of animals as the following:  

  • 600 million years - primitive animals.
  • 570 million years - arthropods  
  • 500 million years - fishes
  •  400 million years - insects.
  • 360 million years - amphibians.
  • 300 million years - reptiles.
  • 200 million years - mammals.
  • 150 million years - birds.
  • 2.5 million years - Homo.
  • 200,000 years - modern humans.

Thus, the correct answer would be - option C. mammals.

Learn more about geological time scale:

https://brainly.com/question/3165693