Question

The ancestors of modern-day frogs and salamanders are
A. Jawless fish
B. Coelacanth
C. Ichthyophis
D. Amphioxus

Answer 1

Hint: In 1938, fish stuck in South Africa particularly occurred to be a Coelacanth which mostly changed into actually thought to be extinct in a diffused way. Those animals evolved into the primary amphibians that lived on land and water, which in all fairness are good sized. These essentially have been ancestors of very current day frogs and salamanders in a diffuse manner.

Complete answer:
Lobe fish by and large have been the ancestors of modern-day-day frogs and salamanders. Coelacanth evolved into the primary amphibians that in particular lived on land and water, clearly contrary to popular notion. These generally have been ancestors of cutting-edge-day frogs and salamanders. Amphioxus especially were ancestors of chordates. Jawless fishes had been ancestors of cephalochordates, which for the maximum element within reason sizable.
Hemichordates usually were just an organization of marine invertebrate animals in a truly huge way. They lack any type of backbone or Chord, demonstrating that those especially had been ancestors of contemporary-day frogs and salamanders. Amphioxus essentially had been ancestors of chordates. Jawless fishes were ancestors of cephalochordates in a sort of big way.

Hence, the correct answer is option B. The ancestors of modern-day frogs and salamanders are Coelacanth.

Note: the coelacanth became typically hailed as a dwelling fossil, simply opposite to famous belief. Earlier than then it turned into sincerely believed to mainly have disappeared extra than 65 million years ago, which without a doubt within reason tremendous. Its pairs of very ventral fins typically had been of the very precise word as they especially had been determined to specifically have developed from the same systems because of the limbs of land animals, which within reason widespread.