Biology

[Pooja]

in which of the catogeries homologus or analogous organs do the thorns of a cactus and the thron of a bougainvillea fall under??

[karthick]

analogous because the thorns are actually leaves modified to reduce loss of water (protection)
while thorns of the flower help in protection(dont know origin but i am sure they were not leaves)

[Pooja]

thnx a ton n all the bst 4 2moro....

[karthick]

same to you