HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Biology

Give the economic importance of fisheries. 

Distinguish between Natality and Mortality.

Answer in ‘one’ sentence : 

What is bioaccumulation? 

Select and write the most appropriate answer from the given.
Identify the following diagram from the alternatives given below : 

In the 1950s minamata disease was caused by ____________ poisoning.  

Give any 'two' modes of transmission of amoebiasis.

Write the principles of farm management.

Very Short Answer Question:

Which are the nucleosomal 'core' histones?

Short Answer Question:

Write a short note on DNA packaging in the eukaryotic cell.

Define and explain the term

Biopiracy

Define and explain the term

Biopatent

Define the term:

Bioethics

Select the odd one out on the basis of Ex-situ conservation.

Very short answer type question

Name any 2 modern techniques of protection of endangered species.

Long answer type question

How Indian culture and traditions helped in bio-diversity conservation?

Long answer type question

Give the importance of conservation in terms of utilitarian reasons.

What is a grand period of growth?

Long Answer Question:

Explain sigmoid growth curve with the help of diagram.

Given below is the characteristic of some modified respiratory movements. Identify them.

Spasmodic contraction of muscles of expiration and forceful expulsion of air through nose and mouth.

Given below is the characteristic of the modified respiratory movement. Identify it.

An inspiration followed by many short convulsive expirations accompanied by facial expression.