How do desert plants perform the photosynthesis process even though their stomata remain closed during the daytime?

What are the adaptations of leaves for photosynthesis?

During the respiration of an organism $A$,one molecule of glucose produces two $ATP$ molecules,whereas in the respiration of another organism $B$,one molecule of glucose produces $38$ $ATP$ molecules.
$(a)$ Which organism is undergoing aerobic respiration?
$(b)$ Which organism is undergoing anaerobic respiration?
$(c)$ Which type of organism,$A$ or $B$,can convert glucose into alcohol?
$(d)$ Name one organism which behaves like $A$.
$(e)$ Name two organisms which behave like $B$.

$(a)$ Name the extensively coiled structure of the alimentary canal.
$(b)$ Compare the length of the small intestine in herbivores and carnivores.

Which of the following statements about the autotrophs is incorrect?

Give reasons for the following:
$(a)$ Rings of cartilage are present in the trachea.
$(b)$ Mucus is secreted along with $HCl$ in the stomach.