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NEET UG BIOLOGY MCQ: ORGANISMS AND POPULATION
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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
(v) In Opuntia, the pathway of photosynthesis is through cycle.
Choose the combinations of correct option
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
(v) In Opuntia, the pathway of photosynthesis is through cycle.
Choose the combinations of correct option
View answer and explanation
Correct option: D
I, II, III and V
Option D (I, II, III and V) is correct because xerophytes have thick cuticles and sunken stomata, CAM pathways, modified leaves and stems, and Opuntia uses the C3 cycle.
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II. Population cover area of banyan is high
III. In above cases the percentage of cover of biomass is more meaningful than population size