Why are cucurbit plants said to be monoecious?

(a) Write the specific name of the genus Plasmodium that causes one of the most serious types of diseases in humans. Name the disease.

(b) Describe the events in the life cycle of Plasmodium which takeplace in the female Anopheles.

(c) Explain what happens in the RBCs of the humans when Plasmodium gains entry into them. How does the human body getaffected?

Explain the interrelationship between organic farming and bio fertilizers,with the help of any three suitable examples.

Where exactly is the filiform apparatus present in the embryo-sac of an angiosperm? State its function.

Explain the role of histones in forming a nucleosome.