Answer:
Homologous structures
Explanation:
Homologous structures are basic organ structures that are similar, which are shared among organisms that are of the same ancestral line or origin. These homologous structures may not be similar in function or in appearance in the different organisms of an ancestral origin that share such structures. An example of basic organ structures shared by mammals is the forelimbs, which is present in bats, humans, cats etc.
The answer is: In recent years, scientists have discovered fossils from long ago that glaciers have hidden
DNA is the basic unit of inheritance
A gene is the basic physical and functional unit of heredity. Genes are made up of DNA. Some genes act as instructions to make molecules called proteins.
Answer:
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Explanation: