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महाराष्ट्र राज्य शिक्षण मंडळएस.एस.सी (इंग्रजी माध्यम) इयत्ता १० वी

Explain the importance of Anatomical evidences with examples.

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प्रश्न

Explain the importance of Anatomical evidences with examples.

थोडक्यात उत्तर
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उत्तर

  1. Anatomical evidences are the similarities in structures and anatomy between different organisms.
  2. The hand of a human, foreleg of ox, flipper of whale, and forelimbs of bat appear different superficially or morphologically.
  3. Also, the function of these structures is different in different animals.
  4. However, there is a similarity in the structure of bones and bony joints in the organs of these animals.
  5. These similarities indicate that the animals evolved from a common ancestor thus providing proof of evolution.
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2019-2020 (March) Official

संबंधित प्रश्‍न

With the help of any two suitable examples explain the effect of anthropogenic actions on organic evolution.


Four students A, B, C and D reported the following set of organs to be homologous. Who is correct ?

(A) Wings of a bat and a butterfly

(B) Wings of a pigeon and a bat

(C) Wings of a pigeon and a butterfly

(D) Forelimbs of cow, a duck and a lizard


Four students P, Q, R and S differently reported the following set of organs to be analogous :

P. Forelimb of a frog and forelimb of a lizard

Q. Forelimb of a bird and forelimb of a human

R. Wings of a parrot and wings of a butterfly

S. Wings of a bird and wings of a bat

The two students who have reported correctly are :

(A) P and Q

(B) Q and R

(C) R and S

(D) P and S


The forelimbs of a frog, a bird and a man show the same basic design (or basic structure) of bones. What name is given to such organs?

 

Read the following statement and justify the same in your own words with the help of a suitable example.

There is evidence of foetal science among chordates.


What are homologous structures?


The decaying process of C-14 occurs continuously in dead organisms only.


Give scientific reason.

Vertebrates have slowly originated from invertebrates.


Give scientific reason.

Duck-billed platypus shows relationship with mammals.


Complete the flowchart.


A human hand, a front leg of a cat, a front flipper of a whale and a bat’s wing look dissimilar and adapted for different functions. What is the name given to these organs?


Homologous organs and vestigial organs are examples of ______ type of evidence in evolution.


Cucurbits do not develop thick and woody stem as they are:


Palaeontological evidence for evolution refers to the ______.


Did aquatic life forms get fossilised? If, yes where do we come across such fossils?


What are we referring to? When we say 'simple organisms' or 'complex organisms'.


Complete the following diagram:


Find odd one out:


As shown in figure below some organisms that share a common ancestor have features that have different functions, but similar structures.

These are known as ______. Give example.


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