|
What are sexually transmitted diseases? List two examples of each disease caused
|
|
1
|
534
|
April 1, 2019
|
|
List six specific characteristics of sexual reproduction
|
|
1
|
919
|
April 1, 2019
|
|
What are chromosomes? Explain how in sexually reproducing organisms
|
|
1
|
496
|
April 1, 2019
|
|
What is vegetative propagation? List its two advantages. Select two plants raised by this method from the list given below:
|
|
1
|
1724
|
April 1, 2019
|
|
Name the two reproductive parts of a bisexual flower which contain the germ cells
|
|
1
|
4314
|
April 1, 2019
|
|
On the notice board of ultrasound clinics it is generally stated. “Here prenatal sex determination
|
|
1
|
2500
|
April 1, 2019
|
|
Describe in brief the function of the various parts of the female reproductive part of a bisexual flower
|
|
1
|
3939
|
April 1, 2019
|
|
On cutting the body of an organism into many pieces it was observed that many of these pieces developed as new individuals
|
|
1
|
1500
|
April 1, 2019
|
|
(a) Write the names of those parts of a flower which serve the same function as the following do in the animals:
|
|
1
|
978
|
April 1, 2019
|
|
List any four methods of contraception used by humans
|
|
1
|
634
|
April 1, 2019
|
|
(a) Explain the process of regeneration in Planaria
|
|
1
|
530
|
April 1, 2019
|
|
What is AIDS? Which microbe is responsible for AIDS infection? State one mode of transmission of this disease
|
|
1
|
983
|
April 1, 2019
|
|
List and explain in brief three methods of contraception
|
|
1
|
8554
|
April 1, 2019
|
|
How is the sex of the child fixed during the fertilisation step in human beings? Explain
|
|
1
|
2365
|
April 1, 2019
|
|
“Only variations that confer an advantage on an individual organism will survive in a population.”
|
|
1
|
1182
|
April 1, 2019
|
|
Describe the role of the following in human beings: (i) Seminal vesicles (ii) Prostate gland
|
|
1
|
729
|
April 1, 2019
|
|
List any three difference between pollination and fertilization
|
|
1
|
740
|
April 1, 2019
|
|
Name one sexually transmitted disease each caused due to bacterial infection and viral infection?
|
|
1
|
814
|
April 1, 2019
|
|
Write two differences between binary fission and multiple fission in a tabular form
|
|
1
|
3574
|
April 1, 2019
|
|
How do plasmodium and Leishmania reproduce? Write one difference in their mode of reproduction
|
|
1
|
1476
|
April 1, 2019
|
|
List four modes of asexual reproduction
|
|
1
|
487
|
April 1, 2019
|
|
List four advantages of vegetative propagation
|
|
1
|
520
|
April 1, 2019
|
|
List the parts of human male reproductive system which contribute fluid to the semen
|
|
1
|
2512
|
April 1, 2019
|
|
List two advantages of practising vegetative propagation in plants
|
|
1
|
3251
|
April 1, 2019
|
|
State the role of placenta in the development of embryo
|
|
1
|
738
|
April 1, 2019
|
|
Name an organism which reproduces by spore formation. List three conditions favourablefor spores to germinate and grow
|
|
1
|
1005
|
April 1, 2019
|
|
Explain the terms: (i) Implantation of Zygote (ii) Placenta
|
|
1
|
2446
|
April 1, 2019
|
|
What is vegetative propagation? Write two of its advantages
|
|
1
|
780
|
April 1, 2019
|
|
What does HIV stand for ? Is AIDS an infectious disease ? List any four modes of spreading
|
|
1
|
1245
|
April 1, 2019
|
|
List any four reasons for vegetative propagation being practised in the growth of some types of plants
|
|
1
|
2073
|
April 1, 2019
|