Study the different conclusions drawn by students of a class on the basis of observations of preserved/available specimens of plants and animals.
I. Potato and sweet potato are analogous organs in plants.
II. Wings of insects and wings of birds are homologous organs in animals.
III. Wings of insects and wings of bats are analogous organs in animals.
IV. Thorns of citrus and tendrils of Cucurbita are analogous organs in plants.
The correct conclusions are
Thorns of Citrus and tendrils of Cucurbita are homologous structures as both of them are modified stems but thorns provide protection to plants against predators while tendrils provide support plant for climbing.So, the correct answer is option C.