The internal (cellular) energy reserve in autotrophs is

Why is the rate of breathing in aquatic organisms much faster than that seen in terrestrial organisms?

Why is the small intestine in herbivores longer than in carnivores?

Choose the function of the pancreatic juice from the following:

Mention the major events during photosynthesis.

Which of the following statement$(s)$ is (are) true about respiration?
$(i)$ During inhalation,ribs move inward and diaphragm is raised
$(ii)$ In the alveoli,exchange of gases takes place i.e.,oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air
$(iii)$ Haemoglobin has greater affinity for carbon dioxide than oxygen
$(iv)$ Alveoli increase surface area for exchange of gases