Question

Embryological support for evolution was disapproved by?

• A. a) Charles Darwin
• B. b) Oparin
• C. c) Alfred Wallace
• D. d) Karl Ernst von Baer

Answer 1

The correct option is D

d) Karl Ernst von Baer

The correct option is D

Explaination of the correct answer:

1. Ernst Haeckel suggested that there is embryological evidence for evolution. His theory was based on the finding that all vertebrates share some characteristics during the embryonic stages.
2. According to his "recapitulation theory," which asserts that "ontogeny (embryonic developmental history) recapitulates phylogeny (evolutionary history)," this idea is known as "biogenetic law" or “recapitulation theory.”
3. This implies that a creature replicates its evolutionary past while still in the prenatal stage.
4. The person who objected to the embryological justification for evolution was Karl Ernst von Baer.
5. He rejected the notion that the morphological stages experienced by the embryos of more sophisticated animals were comparable to those experienced by the adult forms of species lower in the hierarchy of life.

The explanation for the incorrect options:

Option A

1. Charles Darwin asserted that natural selection has guided the evolutionary evolution of living forms.
2. Nature chose the individuals who were more capable of reproducing, and they lived longer and had more offspring than the less capable life forms.

Option B

1. The chemical hypothesis of evolution, proposed by Oparin and Haldane, explains how life first came into being.
2. They claimed that non-living organic molecules (such as RNA, proteins, etc.) that had previously grown on Earth from inorganic components were where "life" first began.

Option C

1. The beginning of life hypothesis put out by Oparin and Haldane had Alfred's approval.
2. He conducted an experiment to mimic a decreasing setting. Amino acids were created by subjecting a mixture of methane, ammonia, hydrogen, and water vapor to high electric voltage and temperature.

Final answer: The person who disagreed with the embryological basis for evolution was Karl Ernst von Baer.