MEDIUM
12th CBSE
IMPORTANT
Earn 100

In 1981, the 'r' value for the human population in India was 0.0205.
Why is 'r' an important parameter?

Important Questions on Model Question Papers 1

MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 12
A certain flower uses 'sexual deceit' for its pollination. Identify the flower and describe this adaptation.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 13
Name the different parts of the fallopian tube in humans. State the specific functions of any two parts.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 13
Explain 'floral rewards' as an adaptation in plants, with the help of any three examples.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 14
Why is apple a false fruit for a biology student? Give another example of false fruit.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 14
"Bananas are often seedless but are always true fruits." Justify the statement.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 14
Expand  'ZIFT'. Explain why and how it is carried out?
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 15
Name a genetic disorder where a human female is always a carrier yet rarely suffers from the disorder. Explain.
MEDIUM
12th CBSE
IMPORTANT
Xam Idea Biology>Chapter 18 - Model Question Papers 1>MODEL QUESTION PAPER>Q 16
Give three reasons to justify why between the two nucleic acids, DNA is considered to be the better one.