HSC Science (General) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Biology

Explain the term Emigration.

Select and rewrite the appropriate disorder of the respiratory system with the given symptom.

Inflammation of the sinuses, mucous discharge.

Select and rewrite the appropriate disorder of the respiratory system with the given symptom.

Inflammation of larynx, vocal cord, sore throat, hoarseness of voice, mucous build up and cough.

Select and rewrite appropriate disorder of respiratory system with the given symptom.

Inflammation of fibrosis, lung damage.

What is a test cross?

Give any ‘two’ factors responsible for genetic variation.

Define vegetative propagation.

Elephantiasis is caused by ________________.

Crippling disease is caused due to poisoning of ____________.

Explain the significance of a test cross.

Humtilin is used to treat ____________.

With the help of a neat and labelled diagram, describe reflex arc.

Overproduction is the principle of

(A) Lamarckism

(B) Theory of organic evolution

(C) Panspermia theory

(D) Modern theory of evolution

__________ is the infectious stage of Plasmodium.

Give the symptoms of typhoid fever and draw a labelled diagram of its causal organism.

What is the common name of Apis mellifera?

Give examples of unconditional reflexes

Why only left ovary and oviduct arc present in birds?

Define the term gene flow.

Name the causative organism and preventive measures for Typhoid