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Asked by Adarsh Udayan

Feb 7, 2015

Differentiate between aquaculture and pisciculture.

Aquaculture means Process of growing any aquatic animal. Pisciculture:It means process of growing particularly fishes

Answer (5)

Asked by Vanya Raghav

May 24, 2015


What are complementary genes and supplementary genes?

Answer.

Complementary genes are the genes which are present on different genetic loci but interact with each other to express a single character in combination. That is they both together produce...

Answer (2)

Asked by Surya rao Sripathi

Jan 31, 2014

Reproduction?

Answer.

Sexual reproduction is considered to be a better mode of reproduction because it creates a hybrid that has more vigor than the parents.

Answer (9)

Asked by Surya rao Sripathi

Jan 31, 2014

What is the function of tail in sperm?

Answer.

The sperm cell has a long tail like flagella. The tail is made of protein fibres which contract on alternative sides, giving it a wavelike movement (snake-like motion).  The main fun...

Answer (2)

Asked by Sagar Rachchh

Jan 25, 2015

What is microsporangium? With the help of a diagram, represent the location of a microsporangium.

Answer.

Microsporangium is the sporangial structure which contains microspores which are the pollen sacs giving rise to male gametes in an angiosperm.
T.S of anther shows the four lobes fo...

Answer (2)

Asked by Adithyan Sanal

May 6, 2015

Why are some seeds referred to as apomictic seeds? Mention one advantage and one disadvantage to a farmer who uses them.

This answer has an image. Please click on the question to read more.

Answer (2)

Asked by Sanalkumar S

Apr 25, 2015

State one advantage and disadvantage of cleistogamy.

Answer.

Cleistogamy is the self pollination occurring in an unopened flower.
 Advantages:
This type self-pollination does not require external agent.
It preserves useful...

Answer (3)

Asked by ThiyagarajanP P

Feb 24, 2015

What is an ecosystem?

Answer.

An ecosystem can be natural or artificial. Organisms in the ecosystem can be categorised into producers, consumers and decomposers. Food chains describe the feeding relationship between t...

Answer (2)

Asked by Sanalkumar S

Apr 13, 2015

List two advantages of using unleaded petrol as a fuel in automobiles.

Answer.

The unleaded petrol does not have lead compound which produce harmful gases, So it does not emit harmful gases into the environment.A cracking process take plac...

Answer (3)

Asked by Johhhn Cena

Sep 30, 2015

Question:
(a) How does the pollination in Vallisneria and Sea grasses takes place?

(b) What type of floral reward is provided by the Yucca plant to the species of moth

Ans: In Vallisneria pollination is through hdrophilly ie through water. In Valilisneria, the female flower appear on the surface of the water as it have a long stalk. The pollen grains released by the male flow...

Answer (1)

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