Q. I. Many xerophytic plants have thick cuticle on leaf epidermis and sunken stomata II. Some xerophytic plants have special photosynthetic pathway (CAM) that enables their stomata close during day III. $Opuntia$ has spines (modified leaves), photosynthetic phylloclade (stem) IV. All adaptations are genetically fixed in all organisms Choose the combinations of correct option
A) I, II, III and IV
B) II, III, IV and V
C) III, IV, V and I
D) I, II, III and V
Explanation
All adaptations are not genetically fixed, like behavioural adaptation. Hibernation and aestivation adaptations for avoiding extreme temperature also not genetically fixed
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.