Similar patterns of embryological development in different but related organisms are responsible for the formation of

This question lacks options, options are:

a) homologous structures

b) analogous structures

c) Hox genes

d) intermediate fossil forms.

The correct answer is a.

Explanation:

Evolutionary theory predicts that related organisms will have similarities that come from common ancestors. Similar characteristics due to kinship are known as homologies. Homologies can be discovered by comparing the anatomical characteristics of different living beings, observing cell similarities and differences, studying embryological development, and studying the vestigial structures of the organisms themselves. Homologous structures are those that have a common origin regardless of the function they fulfill.

Homologous structures

Explanation:

Homologous structures are structures that such as a part of the body, an organ or a gene that can be found or observed in organisms that have a shared ancestry.

Homologous structures for these organisms with shared ancestry can be found to be located at the same place and perform the same function in such organisms.

The DNA that codes for homologous structures is the same the organisms that have a common or shared ancestry.

For example:

A bat, a whale and an human have a common and shared ancestry which means that they are mammals. The homologous structures in these organisms are

Wings which bats use to fly, fins used by whales for swimming in the ocean and limbs in human. These homologous structure performs the same functions in each organism and that function is for movement.

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