Question

What is sequence in the evolution of man?
A) Fish-amphibian-bird-man
B) Insect-fish-bird-man
C) Fish-amphibian-reptile-man
D) Amphibian-bird-man-bird

Answer 1

Evolution is the change in characteristics of a species over generations. It is dependent on the process of natural selection. The characters are the gene expression that is passed from the parent to offspring during reproduction.

Complete Answer:
Evolution by natural selection was given by Charles Darwin. The traits in a population vary in morphology, physiology, behaviour, survival rates, and reproduction. This gives rise to biodiversity within a population. Thus in the successive generations, members are to be replaced by the progeny of the parents which have more advanced characteristics that enabled them to survive in the changing environment.
For example- Shifting of simpler structure to complex structure for better adaptation to the extreme condition. The fishes had two chambered hearts which evolved as a three chambered in amphibians. The three chambered hearts evolved to three or four chambers in reptiles to finally more advanced four chambers in humans.

Additional Information: Evolution is the outcome of the mutation, genetic recombination, chromosomal abnormalities, reproductive isolation and natural selection. The humans are derived from the ape-like ancestors over a period of six million years. Homo habilis or handy man is the first known human.

The correct answer is (C). The sequence of evolution in man is Fish-amphibian-reptile-man.

Note: The fish and humans have common ancestors. Humans evolved from fish. The pectoral fins of the fish are converted into two hands, Fish and human both are jawed vertebrates.