Question

8. Select the correct statement.
(a) Tendril of a pea plant and phylloclade of O.puntia are homologous.
(b) Tendril of a pea plant and phylloclade of Opuntia are analogous.
(c) Wings of birds and limbs of lizards are analogous.
(d) Wings of birds and wings of bat are homologous.​

Answer 1

Answer:

c wings of bird and limbs of lizards......

Answer 2

The correct option is (a) Tendril of a pea plant and phylloclade of O.puntia are homologous.

• Leaves serve as an indicator of plant homology. Leaves have been modified in various plant species for functions other than the photosynthesis.
• A cactus such as Opuntia has a dark, flattened stem called a phylloclade, which carries several spines.
• Although somewhat different in appearance, the spine of the cactus (Opuntia) and a pea tendril are homologous as both are modified leaves.
• The spine supports the cactus ' succulent stem tissue, while the tendril, which coils around and helps support the pea plant's climbing stem. Such structures are also homologous.