The pollination of maize takes place by (1) self-pollination (2) pollination by insects (3) pollination by air (4) pollination by rain

The pollination of maize takes place by (1) self-pollination (2) pollination by insects (3) pollination by air (4) pollination by rain
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pollination by air
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The pollination of maize takes place by (1) self-pollination (2) pollination by insects (3) pollination by air (4) pollination by rain

Description : The pollination of maize takes place by (1) self-pollination (2) pollination by insects (3) pollination by air (4) pollination by rain

Last Answer : (3) pollination by air Explanation: Maize (called corn in some parts of the world) is pollinated by air. The male anthers let go of their pollen and it blows over to a nearby female flower on ... a corn, rather than both sexes in one flower. Maize flowers have evolved to use air for pollination.

What type of pollination takes place in Vallisneria? (a) Pollination occurs in submerged condition by water. (b) Flowers emerge above surface of water, and pollination occurs by insects. (c) Flowers emerge above water surface, and pollen is carried by wind. (d) Male flowers are carried by water currents to female flowers at surface of water.

Description : What type of pollination takes place in Vallisneria? (a) Pollination occurs in submerged condition by water. (b) Flowers emerge above surface of water, and pollination occurs by insects. (c) Flowers ... wind. (d) Male flowers are carried by water currents to female flowers at surface of water.

Last Answer : (d) Male flowers are carried by water currents to female flowers at surface of water

In water hyacinth and water lily, pollination takes place by (a) insects or wind (b) water currents only (c) wind and water (d) insects and water

Description : In water hyacinth and water lily, pollination takes place by (a) insects or wind (b) water currents only (c) wind and water (d) insects and water

Last Answer : (a) insects or wind

$ Pollination by insects is called self pollination. ! Cross pollination is between two genetically similar flowers.

Description : $ Pollination by insects is called self pollination. ! Cross pollination is between two genetically similar flowers.

Last Answer : $ Pollination by insects is called self pollination. ! Cross pollination is between two genetically similar flowers ... D. If both As and R are wrong.

Animal vectors are required for pollination in (a) Vallisneria (b) mulberry (c) cucumber (d) maize.

Description : Animal vectors are required for pollination in (a) Vallisneria (b) mulberry (c) cucumber (d) maize.

Last Answer : (c) cucumber

Why Insects Are Called A Means Of Pollination ?

Description : Why Insects Are Called A Means Of Pollination ?

Last Answer : A means of insect pollination. Insects swarm around to eat honey or attract beautiful colors. At this time the pollen sticks to the carrier. Whenever this carrier sits on another flower of the same species ... to the head of the next flower. This is why insects are called the medium of pollination.

Pollination by insects is called ........ ?

Description : Pollination by insects is called ........ ?

Last Answer : Entomophily

Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) Some reptiles have also been reported as pollinators in some plant species. (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style. (d) Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Description : Which of the following statements is not correct? (a) Pollen germination and pollen tube growth are regulated by chemical components of pollen interacting with those of the pistil. (b) ... Insects that consume pollen or nectar without bringing about pollination are called pollen/ nectar robbers.

Last Answer : (c) Pollen grains of many species can germinate on the stigma of a flower, but only one pollen tube of the same species grows into the style.

Pollination in water hyacinth and water lily is brought about by the agency of (a) water (b) insects or wind (c) birds (d) bats.

Description : Pollination in water hyacinth and water lily is brought about by the agency of (a) water (b) insects or wind (c) birds (d) bats.

Last Answer : b) insects or wind

In gymnosperms pollination is affected by......... a) water b)wind c)animals d)insects.

Description : In gymnosperms pollination is affected by......... a) water b)wind c)animals d)insects.

Last Answer : b)wind

Pollination takes place with the help of bird, what is called? -Do You Know?

Description : Pollination takes place with the help of bird, what is called? -Do You Know?

Last Answer : answer:

In gymnosperms; How does pollination takes place?

Description : In gymnosperms; How does pollination  takes place?

Last Answer : Through Wind

Which Pollination takes place with the help of water is called?

Description : Which Pollination takes place with the help of water is called?

Last Answer : Hydrophyily

Bisexual flowers are present in both Clerodendron and Scrophularia. Still cross pollination takes place. How?

Description : Bisexual flowers are present in both Clerodendron and Scrophularia. Still cross pollination takes place. How?

Last Answer : Ans: In clerodendron the androecium attains maturity earlier than gynoecium and in Scrophulria the gynoecium attains maturity earlier than androecium.  

1. What is the highest denomination of currency notes in circulation as legal tender in India at present? 2. Pollination takes place with the help of bird, what is called? 3. The Lok Sabha Secretariat comes under the direct supervision of which ministry? 4. Narmada river originates from Amarkantak in which state? 5. Which upheaval took place in Bengal immediately after the Revolt of 1857 ?

Description : 1. What is the highest denomination of currency notes in circulation as legal tender in India at present? 2. Pollination takes place with the help of bird, what is called? 3. The Lok Sabha ... due to rejuvenation of a river? 20. Quit India Movement started after the failure of which proposal?

Last Answer : Answer : 1. Rs. 1000 2. Ornithophily 3. Ministry of Human Affairs 4. Madhya Pradesh 5. Indigo Disturbances 6. White of egg 7. Bernardo Bertolucci 8. Crystallography 9. U.P. 10. Sanyasi rebellion 11. Echidna 12. 530 ... 16. V. K. R. V. Rao 17. August 12 18. Four 19. Oxbow lake 20. Cripps' proposal

Pheretima and its close relatives derive nourishment from (a) sugarcane roots (b) decaying fallen leaves and soil organic matter (c) soil insects (d) small pieces of fresh fallen leaves of maize, etc.

Description : Pheretima and its close relatives derive nourishment from (a) sugarcane roots (b) decaying fallen leaves and soil organic matter (c) soil insects (d) small pieces of fresh fallen leaves of maize, etc.

Last Answer : (b) decaying fallen leaves and soil organic matter

A mechanism of self pollination in which flowers open but only after pollination has take place

Description : A mechanism of self pollination in which flowers open but only after pollination has take place

Last Answer : Ans. Chasmogamy

Which is a tropical food crop requiring a temperature of 270C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley

Description : Which is a tropical food crop requiring a temperature of 270C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley

Last Answer : (3) Rice Explanation: Rice is a major crop grown in most tropical and semi tropical regions. Rice being a tropical and subtropical plant, requires a fairly high temperature, ranging from 20° to 40°C. it requires an average temperature of about 24°C.

Which is a tropical food crop requiring a temperature of 27 degree C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley

Description : Which is a tropical food crop requiring a temperature of 270 C and a rain fall more than 100 cm? (1) Wheat (2) Maize (3) Rice (4) Barley 

Last Answer : Rice

Differentiate between ‘self-pollination’ and ‘cross-pollination’. Describe double fertilisation in plants. -Science

Description : Differentiate between ‘self-pollination’ and ‘cross-pollination’. Describe double fertilisation in plants. -Science

Last Answer : answer:

Difference between self and cross pollination? -Biology

Description : Difference between self and cross pollination? -Biology

Last Answer : answer:

Advantages of self pollination. -Biology

Description : Advantages of self pollination. -Biology

Last Answer : answer:

Disadvantages of self pollination. -Biology

Description : Disadvantages of self pollination. -Biology

Last Answer : answer:

Name the type of pollination in self-incompatible plants. -Biology

Description : Name the type of pollination in self-incompatible plants. -Biology

Last Answer : answer:

What is self pollination in plants? -Biology

Description : What is self pollination in plants? -Biology

Last Answer : answer:

Difference between self pollination and cross pollination -Biology

Description : Difference between self pollination and cross pollination -Biology

Last Answer : answer:

Why is cross pollination preferable to self pollination? -Biology

Description : Why is cross pollination preferable to self pollination? -Biology

Last Answer : answer:

What are the benefits of self-pollination ?

Description : What are the benefits of self-pollination ?

Last Answer : There are several benefits to self-pollination. The advantages are discussed below - self-pollination reduces pollen waste , eliminates the need to rely on carriers for pollination and ensures ... Self-pollination plays an important role in maintaining the characteristic purity of a plant species.

What is self-pollination ?

Description : What is self-pollination ?

Last Answer : Self-pollination is when the pollen spontaneously transfers from the anther into the uterus of the same flower or any other flower of the same plant.

$ Self pollination in bud condition of a flower is called cleistogamy. ! Cleistogamy is usually accompanied by geocarpy.

Description : $ Self pollination in bud condition of a flower is called cleistogamy. ! Cleistogamy is usually accompanied by geocarpy.

Last Answer : $ Self pollination in bud condition of a flower is called cleistogamy. ! Cleistogamy is usually accompanied by ... D. If both As and R are wrong.

Self pollination will lead to – (1) inbreeding (2) rare breeding (3) overbreeding (4) outbreeding

Description : Self pollination will lead to – (1) inbreeding (2) rare breeding (3) overbreeding (4) outbreeding

Last Answer : (1) inbreeding Explanation: Self-pollination can lead to inbreeding depression, or the reduced health of the species, due to the breeding of related specimens. This is why many flowers that could potentially self-pollinate have a built-in mechanism to avoid it.

A clone is a group of individuals obtained through – (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination

Description : A clone is a group of individuals obtained through – (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination

Last Answer : (2) Micropropagation Explanation: Micropropagation is the practice of rapidly multiplying stock plant material to produce a large number of progeny plants, using modern plant tissue cultore ... to accelerated growth compared to similar plants produced by conventional methods - like cuttings.

Self pollination is a form of: a. Inbreeding b. Out breeding c. Random mating d. None of these

Description : Self pollination is a form of: a. Inbreeding b. Out breeding c. Random mating d. None of these

Last Answer : Inbreeding

Nature of pollination in cucurbits is: a. Highly cross pollinated b. Oftenly cross pollinated c. Highly self pollinated d. None of above

Description : Nature of pollination in cucurbits is: a. Highly cross pollinated b. Oftenly cross pollinated c. Highly self pollinated d. None of above

Last Answer : Highly cross pollinated

Nature of pollination in cucurbits is: a. Highly cross pollinated b. Oftenly cross pollinated c. Highly self pollinated d. None of above

Description : Nature of pollination in cucurbits is: a. Highly cross pollinated b. Oftenly cross pollinated c. Highly self pollinated d. None of above

Last Answer : Highly cross pollinated

.Angiosperms have dominated the land flora primarily because of their (a) power of adaptability in diverse habitat (b) property of producing large number of seeds (c) nature of self pollination (d) domestication by man

Description : .Angiosperms have dominated the land flora primarily because of their (a) power of adaptability in diverse habitat (b) property of producing large number of seeds (c) nature of self pollination (d) domestication by man

Last Answer : (a) power of adaptability in diverse habitat

(A) MENTION ANY FOUR STRATEGIES ADOPTED BY FLOWERING PLANTS TO PREVENT SELF-POLLINATION. (B) DEFINE THE TERM EMASCULATION.

Description : (A) MENTION ANY FOUR STRATEGIES ADOPTED BY FLOWERING PLANTS TO PREVENT SELF-POLLINATION. (B) DEFINE THE TERM EMASCULATION.

Last Answer : ANS.(a) (i) SELF INCOMPATIBILITY (ii) PRODUCTION OF UNICELLULAR FLOWERS (iii) ANTHERS AND STIGMA ARE PLACED AT DIFFERENT POSITIONS. (iv) MATURATION OF ANTHER AND STIGMA IS NOT ... EMASCULATION: REMOVAL OF ANTHER BEFORE MATURITY SO AS TO ENSURE CROSS POLLINATION IN SELF POLLINATING FLOWERS.

Mention three strategies evolved to prevent self-pollination in flowers.

Description : Mention three strategies evolved to prevent self-pollination in flowers.

Last Answer : Ans: 1. Dichogamy: stigma and anther mature at different times. 2. Heterostyly: stigma and anther are placed at different levels. 3. self-incompilibility

Which one of following is true about chloroplast (A) It is underground part (B) It helps in pollination (C) Self replicating organelle (D) Involve in Lipid synthesis

Description : Which one of following is true about chloroplast (A) It is underground part (B) It helps in pollination (C) Self replicating organelle (D) Involve in Lipid synthesis

Last Answer : (C) Self replicating organelle

A clone is a group of individuals obtained through (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination

Description : A clone is a group of individuals obtained through (1) Hybridisation (2) Micropropagation (3) Cross pollination (4) Self pollination

Last Answer : Micropropagation

Self pollination will lead to (1) inbreeding (2) rare breeding (3) overbreeding (4) outbreeding

Description : Self pollination will lead to (1) inbreeding (2) rare breeding (3) overbreeding (4) outbreeding

Last Answer : inbreeding

What effect do rain drops have on small insects as ants?

Description : What effect do rain drops have on small insects as ants?

Last Answer : Nah those fuckers are strong as hell. From lingolex.com: The legs of the ant are very strong so they can run very quickly. If a man could run as fast for his size as an ant can, he could run as ... brain has 10,000 million so a colony of 40,000 ants has collectively the same size brain as a human.

Maize is — pollinated crop. a. Self b. Often cross c. Cross d. None of these

Description : Maize is — pollinated crop. a. Self b. Often cross c. Cross d. None of these

Last Answer : c. Cross

Assertion A.: The minimum self cleansing velocity in the sewer, at least once a day, must be generated. Reason (R): If certain deposition takes place and is not removed, it obstructs free flow and causes further deposition leading to complete blocking of the sewer. A. Both A and R are true and R is the correct explanation of A B. Both A and R are true but R is not a correct explanation of A C. A is true but R is false D. A is false but R is true

Description : Assertion A.: The minimum self cleansing velocity in the sewer, at least once a day, must be generated. Reason (R): If certain deposition takes place and is not removed, it obstructs free flow and causes further ... correct explanation of A C. A is true but R is false D. A is false but R is true

Last Answer : ANS: A

Self-locking takes place when a) Coefficient of friction is equal to or greater than the tangent of the helix angle b) Coefficient of friction is lesser than or equal to the tangent of the helix angle c) Coefficient of friction is equal to or greater than the tangent of the helix angle d) None of the mentioned

Description : Self-locking takes place when a) Coefficient of friction is equal to or greater than the tangent of the helix angle b) Coefficient of friction is lesser than or equal to the tangent of the helix ... friction is equal to or greater than the tangent of the helix angle d) None of the mentioned

Last Answer : c) Coefficient of friction is equal to or greater than the tangent of the helix angle

Find false statement a. Tube of supercritical boilers are self-supporting b. Corners are easy to form c. Uniform heating of water takes place in supercritical boiler occurs d. All

Description : Find false statement a. Tube of supercritical boilers are self-supporting b. Corners are easy to form c. Uniform heating of water takes place in supercritical boiler occurs d. All

Last Answer : c. Uniform heating of water takes place in supercritical boiler occurs

Rubesh generally takes 80 minutes to reach home from office. Due to rain, he travelled at 2/3rd of his usual speed for the 1st half of the distance. At what speed should rubesh travel the remaining distance to reach home on time? a) 1.5 times the original speed b) 2 times the original speed c) 2.5 times the original speed d) 3 times the original speed e) Cannot reach on time

Description : Rubesh generally takes 80 minutes to reach home from office. Due to rain, he travelled at 2/3rd of his usual speed for the 1st half of the distance. At what speed should rubesh travel the remaining distance ... c) 2.5 times the original speed d) 3 times the original speed e) Cannot reach on time

Last Answer : Under the normal speed, 40 minutes for half the distance Due to rain, time taken will be 40 / (2/3) = 40 × (3/2) = 60 minutes So, in 20 minutes he has to cover the distance he usually covers in 40 minutes. So, he has to travel at twice the original speed. Answer: b)

If 20% or more area of the country suffers from rain deficits during monsoon season. It is termed as – (1) flood year (2) drought year (3) famine year (4) self sufficient year

Description : If 20% or more area of the country suffers from rain deficits during monsoon season. It is termed as – (1) flood year (2) drought year (3) famine year (4) self sufficient year

Last Answer : (2) drought year Explanation: According to Indian Meteorological Department. when the rainfall deficiency for the country as a whole is more than 10% of normal and more than 20% of the country' ... by drought conditions (rainfall deficit), the situation is defined as an all-India drought year.

How much air humidity can cause fungi or insects in fish food ?

Description : How much air humidity can cause fungi or insects in fish food ?

Last Answer : If the humidity is more than 65% , fungi or insects can grow in fish food.

Flowers emit fragrance to : (1) purify air (2) drive away flies (3) attract insects (4) perform all the above

Description : Flowers emit fragrance to : (1) purify air (2) drive away flies (3) attract insects (4) perform all the above

Last Answer : (3) attract insects Explanation: Flowers emit fragrance to attract pollinators which are mainly insects. The fragrance plays a prominent role in the localization and selection of flowers by insects, especially moth-pollinated flowers, which are detected and visited at night.