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practise drawing various animals and plants
Question 7
Practise drawing various animals and plants.
Answer
You can draw image of any animals of your wish.
Popular Questions of Class 12 Biology
Q:-
What is spermatogenesis? Briefly describe the process of spermatogenesis.
Q:-
Why is reproduction essential for organisms? Answer
Q:-
Write a short note on
(a) Adaptations of desert plants and animals
(b) Adaptations of plants to water scarcity
(c) Behavioural adaptations in animals
(d) Importance of light to plants
(e) Effect of temperature or water scarcity and the adaptations of animals.
Q:-
With a neat diagram explain the 7-celled, 8-nucleate nature of the female gametophyte.
Q:-
What is DNA fingerprinting? Mention its application.
Q:-
What is oogenesis? Give a brief account of oogenesis.
Q:-
Describe the structure of a seminiferous tubule.
Q:-
What is triple fusion? Where and how does it take place? Name the nuclei involved in triple fusion.
Q:-
With a neat, labelled diagram, describe the parts of a typical angiosperm ovule.
Q:-
Explain the Law of Dominance using a monohybrid cross.
Recently Viewed Questions of Class 12 Biology
Q:-
Name some traditional Indian foods made of wheat, rice and Bengal gram (or their products) which involve use of microbes.
Q:-
How does the transmission of each of the following diseases take place?
(a) Amoebiasis
(b) Malaria
(c) Ascariasis
(d) Pneumonia
Q:-
Three water samples namely river water, untreated sewage water and secondary effluent discharged from a sewage treatment plant were subjected to BOD test. The samples were labelled A, B and C; but the laboratory attendant did not note which was which. The BOD values of the three samples A, B and C were recorded as 20mg/L, 8mg/L and 400mg/L, respectively. Which sample of the water is most polluted? Can you assign the correct label to each assuming the river water is relatively clean?
Q:-
Distinguish between
(a) Grazing food chain and detritus food chain
(b) Production and decomposition
(c) Upright and inverted pyramid
(d) Food chain and Food web
(e) Litter and detritus
(f) Primary and secondary productivity
Q:-
Give three hypotheses for explaining why tropics show greatest levels of species richness.
Q:-
Describe the post-fertilization changes in a flower.
Q:-
Which property of DNA double helix led Watson and Crick to hypothesise semi-conservative mode of DNA replication? Explain.
Q:-
If a population growing exponentially double in size in 3 years, what is the intrinsic rate of increase (r) of the population?
Q:-
Is the use of contraceptives justified? Give reasons.
Q:-
Find out from internet what is golden rice.
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NCERT Chapter
Reproduction in Organisms
Sexual Reproduction in Flowering Plants
Human Reproduction
Reproductive Health
Principles of Inheritance and Variation
Molecular Basis of Inheritance
Evolution
Human Health and Disease
Strategies for Enhancement in Food Production
Microbes in Human Welfare
Biotechnology Principles and Process
Biotechnology and its Application
Organisms and Population
Ecosystem
Biodiversity and Conservation
Environmental Issues