Examlex
Which of the following structures is formed before the others during frog development?
Homologous Traits
Features in different species that are similar because they were inherited from a common ancestor.
Common Ancestor
The newest common progenitor of all entities within a specified group.
Different Species
Distinct groups of organisms that are classified separately due to important differences in physical, genetic, or behavioral traits.
Embryology
The branch of biology dealing with the study of embryos and their development.
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