MCQs:
1 ) Leaves of a pitcher plant and spines in a cactus are examples of :a) homology
b) analogy
c) ethology
d) sociobiology
2) Which part of a cacti is homologous to leaves of a rose plant?
a) succulent stem
b) spines
c) thorns
d) flowers
1)Homology
The origin of spines and leaves of pitcher plant are same but their functions are different. So, both of them are example of homology.
2) Spines. Spines of cactus and leaves of rose have same origin but they perform different function.
The origin of spines and leaves of pitcher plant are same but their functions are different. So, both of them are example of homology.
2) Spines. Spines of cactus and leaves of rose have same origin but they perform different function.