Question

or some vestigial organs in human
body and write the names of those
animals in whom same organs are
functional.
Answer the following questions.
a. How are the hereditary changes
responsible for evolution?
b. Explain the process of formation of
complex proteins.
c. Explain the theory of evolution and
mention the proof supporting it.
d. Explain with suitable examples
importance of anatomical
evidences in evolution.
e. Define fossil. Explain importance
of fossils as proof of evolution
f. Write evolutionary history of
modern man.
fect
1. Make a presentation on huma
molition using various compute​

Answer 1

Answer:

Vestigiality is the retention during the process of evolution of genetically determined structures or attributes that have lost some or all of their ancestral function in a given species.[1] Assessment of the vestigiality must generally rely on comparison with homologous features in related species. The emergence of vestigiality occurs by normal evolutionary processes, typically by loss of function of a feature that is no longer subject to positive selection pressures when it loses its value in a changing environment. The feature may be selected against more urgently when its function becomes definitively harmful, but if the lack of the feature provides no advantage, and its presence provides no disadvantage, the feature may not be phased out by natural selection and persist across species.

Examples of vestigial structures are the loss of functional wings in island-dwelling birds; the human appendix and vomeronasal organ; and the hindlimbs of the snake and whale.