Science, asked by Anonymous, 10 months ago

What is meant by analogous organs? Taking a suitable example, explain how they support the theory of Organic Evolution.​

Answers

Answered by chinu1618
2

Answer:

Analogous organs are defined as the structures that differ in their basic structures or developmental origin but appear similar or perform similar functions. The most common example is the wings of bat and wings of bird. They perform similar functions i.e. help the organism to fly, but there structure is different. Bat wings are made up of flaps of skin which is stretched between the bones of the fingers and the arm while the wings of bird are made up of feathers extending all along the arm. 

Presence of analogous structures supports the process of convergent evolution, where unrelated organisms develop similar characteristics to adapt to similar environments. 

Vertebrate wings are homologous as forelimbs, being derived from the same organs; however, as organs of flight in pterosaurs (1), bats (2) andbirds (3) they are analogous; they resemble each other in some ways, and they fulfil similar functions, but their roles in flight have evolved separately.

Analogous are the ones which perform same function but are structurally same.

e.g. Wings of Bat and Wings Of Birds, have diff structure but perform same function (of flying)

So they are analogous.

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Answered by Anonymous
1

ᴀɴᴀʟᴏɢᴏᴜs, ᴏʀɢᴀɴs ʜᴀᴠᴇ ᴅɪғғᴇʀᴇɴᴛ ᴅᴇᴠᴇʟᴏᴘᴍᴇɴᴛᴀʟ ᴏʀɪɢɪɴ ᴀɴᴅ sᴛʀᴜᴄᴛᴜʀᴀʟ ᴅᴇsɪɢɴ ʙᴜᴛ ᴘᴇʀғᴏʀᴍ sɪᴍɪʟᴀʀ ғᴜɴᴄᴛɪᴏɴ,ᴇ.ɢ. ᴛʜᴇ ᴡɪɴɢs ᴏғ ʙɪʀᴅs ᴀɴᴅ ɪɴsᴇᴄᴛs ᴀʀᴇ ᴀɴᴀʟᴏɢᴏᴜs ᴏʀɢᴀɴs ɪɴᴅɪᴄᴀᴛɪɴɢ ᴛʜᴀᴛ ᴛʜᴇʏ ʜᴀᴠᴇ ᴅɪғғᴇʀᴇɴᴛ, ᴀɴᴄᴇsᴛᴏʀs ʙᴜᴛ ʜᴀᴠᴇ ᴀ ᴄᴏɴᴠᴇʀɢᴇɴᴛ ᴇᴠᴏʟᴜᴛɪᴏɴ. ɪɴ ᴛʜɪs ᴡᴀʏ, ᴀɴᴀʟᴏɢᴏᴜs ᴏʀɢᴀɴ sᴜᴘᴘᴏʀᴛs ᴛʜᴇ ᴛʜᴇᴏʀʏ ᴏғ ᴏʀɢᴀɴɪᴄ ᴇᴠᴏʟᴜᴛɪᴏɴ.

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