THERE ARE TWO QUESTIONS. PLEASE ANSWER BOTH OF THEM! Question 20 0.75 out of 1 p
ID: 96510 • Letter: T
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THERE ARE TWO QUESTIONS. PLEASE ANSWER BOTH OF THEM!
Question 20 0.75 out of 1 points The traits below represent homoplasy or homology. Match them. (Hint: Think about which groups the animals being compared belong to. Are they mammals? Birds? Other groups?) Question wing skeleton of a bat and and arm skeleton of a human B. homology platypus and bird beaks human and whale hair Selected Match B. homology B. homology A. homoplasy wings of birds and wings butterfies All Answer Choices A. homoplasy B. homologyExplanation / Answer
20) B.All are homology.Wing skeleton of a bat and arm skeleton of a human is homology.
Platypus and bird beaks are homology.
Human and whale hair is homology.
Wing of birds and wings butterflies are homology.
A homoplasy is a character shared by a set of species but not present in their common ancestor. A good example is the evolution of the eye which has originated individually in many different species. When this happens it is sometimes called a convergence.
Homology is the survival of shared ancestry between a pair of structures, or genes, in different taxa. Any characteristic of biological organisms which is derived from a common ancestor.
19) Analogous or homoplasious traits, eyes in squid and humans is convergent evolution. Convergent evolution produces analogous structures which have similar form or function but were not present in the last common ancestor of those groups.
Vestigial traits pelvic bones in snakes having the same relation, relative position, or structure. So,they implies divergent evolution.
Homologous traits, backbone in vertibrates is divergent evolution. Homologous traits are those traits which are shared by two or more different species and which share a common ancestor. Backbone which gives vertebrates their classification is an example of a homology which originated in the ancestor of this group. Backbones in mammals, however, serve as an example of ancestral homology, because this trait originated before mammals’ common ancestor.
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