The more __ the homologous structure, the more likely they _ shared a common ancestor

Biology

1 answer:

Natali [406]2 years ago

3 0

The more numbers of the homologous structure, the more likely they have recently shared a common ancestor.

Explanation:

Homologous organs are defined as those organs which do have different functions but a similar basic structure which denotes the divergent evolution. Homologous organs are seen in species that are very close to each other which are more related with each other in terms of evolution. For example, a bird is more close to each man than a fish, so do share more homologous organs common to man than fishes do. Examples of the homologous organs are hands of human and wings of birds. They have same basic structure like skeletal structure which is humerus, radius, ulna, carpals, metacarpals and phalanges. They are similar in structure but have different functions like flying in birds and gathering food in humans.

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A surface representation of human DNA polymerase β (Pol β), a central enzyme in the base excision repair (BER) pathway. Image Credit: niehs.nih.gov

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Answer:

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Horner's syndrome:

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In this condition particularly damage one side of the face and eye of the patient.

Symptoms:

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Miosis (pupil will become small)

ptosis (upper eyelid will drooping)
anisocoria (pupil size will be physically different between two eyes)
anhidrosis (there will be no sweating or little in rare cases)

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The more ________________ the homologous structure, the more likely they _______________ shared a common ancestor

The more __ the homologous structure, the more likely they _ shared a common ancestor