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fgiga [73]
3 years ago
12

A body part lost its original function through evolution what is the vocabulary term

Biology
2 answers:
Natali [406]3 years ago
5 0

Answer: Vestigial structures

Explanation: Vestigial structures are an anatomical feature or behavior that no longer seem to have any purpose in the present form of an organism in the given species. Usually, they are often parts of the body that used to preform important functions in earlier forms of the organism.

Tasya [4]3 years ago
4 0

Answer:

The body parts which are present in reduced form in the body and have lost their function in the body because of evolution are called <u>vestigial organs</u>.

Explanation:

The vestigial or rudimentary organs are the remnants of the structures or organs which might have been large and functional in the ancestors, or the organisms from which the present-day organisms have evolved. These vestigial organs are often undersized, degenerated and non-functional.

1.Examples of vestigial organs in humans ( Figure 1)

  • Vermiform Appendix- the human appendix is the remnant of the caecum which is large and functional in herbivorous mammals like cows and buffaloes. In these animals, it helps in digestion.
  • Caudal vertebrae - Also known as coccyx or tail bone, the caudal vertebrae is prominent among our close relatives like monkeys, in which this forms a functional tail.

2. Examples of vestigial organs in other animals (Figure 2)

  • Hind-limbs in Python- The python has no use of limbs so these structures have been diminished in them and are present in only rudimentary form.

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