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Study with Quizlet and memorize flashcards containing terms like homologous structures, Identify the pair of homologous structures. a. Maple leaf and maple seed b. Maple leaf and oak leaf c.
Identify the pair of homologous structures: A) Maple leaf and oak leaf B)Maple leaf and maple seed C) Neither, plants do not have homologous structures.
1. The universal genetic language of DNA is common to virtually all organisms on Earth, however diverse. What is the best explanation for this fact? 2. What is the meaning of Darwin's expression "descent with modification"? 3. What happens when two atoms form a chemical bond? 4. What illustrates a property that emerges at the community level?
Homologous structures are organs or skeletal elements of animals and organisms that, by virtue of their similarity, suggest their connection to a common ancestor. These structures do not have to look exactly the same, or have the same function.
Homology is defined between structures or DNA derived from a common ancestor and illustrates the presence of common features or traits. A classic example of homologous structures is seen in the limbs of humans, cats, whales, and bats.
Homology is a relationship defined between structures or DNA derived from a common ancestor and illustrates descent from a common ancestor. Analogous structures are physically (but not genetically) similar structures that were not present the last common ancestor.
Examining homologous structures offers insight into the shared ancestry and evolutionary history of different organisms. These similarities arise not from serving the same function, but from being inherited from a common ancestor.
Here are some examples of homologous structures that humans share with other creatures from the animal kingdom. A dolphin's flipper, a bird's wing, a cat's leg, and a human arm are considered homologous structures.
Homologous structures share a similar embryonic origin; analogous organs have a similar function. For example, the bones in the front flipper of a whale are homologous to the bones in the human arm. These structures are not analogous.
Identify the pair of homologous structures. A. Maple leaf and oak leaf B. Maple leaf and maple seed C. Neither of the above; plants do not have homologous structures.