The homologous organs are those that show similarity in

1. size

2. origin

3. function

4. appearance 

Thorn of Bougainvillea and tendril of Cucurbita are examples of  
1. analogous organs

2. homologous organs

3. vestigial organs

4. retrogressive evolution 

Which one of the following options gives one correct example each of convergent evolution and divergent evolution?

Homologous organs are

1. wings of insects and bat

2. gills of fish and lungs of rabbit

3. pectoral fins of fish and fore limbs of horse

4. wings of grasshopper and crow

Which of the following pair is homologous organ?

1. Wings of birds and locust

2. Wings of birds (sparrow) and pectoral fins of fish

3. Wings of bat and butterfly

4. Legs of frog and cockroach