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Rita performs two set of experiments to study the length of the foam formed which are as follows: Set I: she takes 10 ml of distilled water in test tube “A” and adds 5-6 drops of liquid soap in it and shakes the test tube vigorously. Set II: she takes 10 ml of distilled water in a test tube “A” and adds 5-6 drops of liquid soap with half spoonful of CaSO 4 in it and shakes the test tube. Write your observation and reason

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Rita performs two set of experiments to study the length of the foam formed which are as follows:
Set I: she takes 10 ml of distilled water in test tube “A” and adds 5-6 drops of liquid soap in it and shakes the test tube vigorously.
Set II: she takes 10 ml of distilled water in a test tube “A” and adds 5-6 drops of liquid soap with half spoonful of CaSO 4 in it and shakes the test tube. Write your observation and reason

Anonymous User tag : Biology 10 Apr, 2019 2 Answer 55 views

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Lady bird (Beetle with red and black marking) is used as biological control of ?

Anonymous User tag : Biology 09 Dec, 2018 1 Answer 63 views

You overheard your mother telling an expecting mother to avoid breastfeeding the newly born for first two three days after birth as the yellowish fluid secreted by the mother is a waste fluid and should be discarded. Will you support your mother’s opinion?

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You overheard your mother telling an expecting mother to avoid breastfeeding the newly born for first two three days after birth as the yellowish fluid secreted by the mother is a waste fluid and should be discarded. Will you support your mother’s opinion?

Preeti Rai tag : Biology 04 Feb, 2018 1 Answer 82 views

Which one of the following is categorised as a parasite in true sense?

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Which one of the following is categorised as a parasite in true sense?

1. The cuckoo (koel) lays its egg in crow's nest

2. The female Anopheles bites and sucks blood from humans

3. Human foetus developing inside the uterus draws nourishment from the mother

4. Head louse living on the human scalp as well as laying eggs on human hair

Nikita Shah tag : Biology 05 Jan, 2018 1 Answer 126 views

A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?

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A person with unknown blood group under ABO system, has suffered much blood loss in an accident and needs immediate blood transfusion. His one friend who has a valid certificate of his own blood type, offers for blood donation without delay. What would have been the type of blood group of the donor friend?

Nikita Shah tag : Biology 04 Jan, 2018 1 Answer 156 views