Get a free home demo of LearnNext
Available for CBSE, ICSE and State Board syllabus.
Call our LearnNext Expert on 1800 419 1234 (tollfree)
OR submit details below for a call back
Adarsh Udayan
Feb 7, 2015
Differentiate between aquaculture and pisciculture.
Vanya Raghav
May 24, 2015
What are complementary genes and supplementary genes?
What are complementary genes and supplementary genes?
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...
Surya rao Sripathi
Jan 31, 2014
What is the function of tail in sperm?
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...
Sanalkumar S
Apr 25, 2015
State one advantage and disadvantage of cleistogamy.
Cleistogamy is the self pollination occurring in an unopened flower.
Advantages:
This type self-pollination does not require external agent.
It preserves useful...
Surya rao Sripathi
Jan 31, 2014
Reproduction?
Sexual reproduction is considered to be a better mode of reproduction because it creates a hybrid that has more vigor than the parents.
Sagar Rachchh
Jan 25, 2015
What is microsporangium? With the help of a diagram, represent the location of a microsporangium.
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...
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.
ThiyagarajanP P
Feb 24, 2015
What is an ecosystem?
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...
Sunny Mathew
Apr 17, 2015
Differentiate between a dicot embryo and a monocot embryo.
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
(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
Adarsh Udayan
Feb 7, 2015
Differentiate between aquaculture and pisciculture.
Vanya Raghav
May 24, 2015
What are complementary genes and supplementary genes?
What are complementary genes and supplementary genes?
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...
Surya rao Sripathi
Jan 31, 2014
What is the function of tail in sperm?
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...
Sanalkumar S
Apr 25, 2015
State one advantage and disadvantage of cleistogamy.
Cleistogamy is the self pollination occurring in an unopened flower.
Advantages:
This type self-pollination does not require external agent.
It preserves useful...
Surya rao Sripathi
Jan 31, 2014
Reproduction?
Sexual reproduction is considered to be a better mode of reproduction because it creates a hybrid that has more vigor than the parents.
Sagar Rachchh
Jan 25, 2015
What is microsporangium? With the help of a diagram, represent the location of a microsporangium.
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...
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.
ThiyagarajanP P
Feb 24, 2015
What is an ecosystem?
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...
Sunny Mathew
Apr 17, 2015
Differentiate between a dicot embryo and a monocot embryo.
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
(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