Most of the flowers in plants are of which type?

Why does the lining of the uterus become thick and spongy every month?

Length of pollen tube depends on the distance between

Why are the testes located outside the abdominal cavity? Mention the endocrine and exocrine function of the testes.

$(a)$ Identify the organisms $A$ and $B$ and the mode of asexual reproduction exhibited by them.
$(b)$ How will an organism be benefitted if it reproduces through spores?
$(c)$ Mention the two asexual methods by which Hydra can reproduce. Explain briefly any one such method.

"The consistency of $DNA$ copying during reproduction is important for the maintenance of body design features." Support this statement with two arguments.