Home
Class 12
BIOLOGY
Complete the given statements by choosin...

Complete the given statements by choosing th correct option for A, B, C and D.a. Among the insects ulA are the dominant biotic pollinators.b.ul B_and ulC provide safe places foregg laying as the floral rewards.c . ulC Insects which consume pollen or nectar without bringing about pollination are called ulD

A

A. Butterflies,B. Aquilegia,C. Hydrilla,D. Pollen robbers

B

A. Bees,B. Yucca,C. Amorphophallus,D. Pollen robbers

C

A. Beetles,B.Yucca,C. Amorphophallus D. Pollen robbers

D

A. Bees,B. Aquilegia,C. Pronuba,D. Pollen robbers

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TEST 1

    AAKASH INSTITUTE ENGLISH|Exercise Examplle|19 Videos

  • STRUCTURAL ORGANISATION IN ANIMALS (CONTD . . .) (ANIMAL MORPHOLOGY)

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (Section-D)|10 Videos

  • TEST 2

    AAKASH INSTITUTE ENGLISH|Exercise EXERCISE|619 Videos

Similar Questions

Explore conceptually related problems

Consider the given statements and choose the correct option (a) many bony fishes , tadpole larva of frog and terrestrial insects are ammonotelic in nature (b) in frog kidneys are mesonephric (c) GFR falls - activation of JG cells - release rennin - GFR normal (d) NaCI is transported by the ascending limb of Henles loop which is exchanged with the ascending portion of visa recta

Read the statements carefully and mark the correct option . a. Most of the aquatic plants are pollinated by either Insects or air. b.Vallisneria is dioecious and pollinates underwater . c. In a artificial hybridization, the female flower of castor does not require emasculation .

Read the given statements and choose the option which assign them as true/false correctly.a)Cleavage in human is ,indetermine and holoblastic.b)Day of ovulation is 24th in a woman whose menstrual cycle is of 48days,c) Layer of theca cells makes its earliest appearance at secondary stage oocyte,d)Mammary glands are apocrine,endocrine glands,whose alveoli synthesize milk under increased levels of oestrogen during pregnancy.

Read the given statements and select the correct option w.r.t. true and false : br (a) Duration of each cardiac cycle is 0.8 seconds which can be altered in fear or fight conditions, br (b) Rapid passive ventricular filling takes place when auricles are in diastole and auriculoventricular valves remain closed, br (c) Semilunar valves open when intraventricular pressure exceeds the pressure within aorta, br (d) Sinoatrial node comprises of autoexcitable tissue.

Read the following statements and find the suitable option :- (a) Generally petals are green, leaf like and protect the flower in the bud stage. (b) Generally sepals are brightly coloured to attract insects for pollination. (c) If stamens in a flower remain free (no cohesion) this is called polyandrous. (d) Each ovary bears one or more ovules attached to a flattened, cushion like placenta.

Which of the following statements about Bacillus thuringiensis are correct? A. One of the toxin produced by the bacteria is thurioside, which is active against different groups of insect larvae. B. The toxin accumulates inside the bacteria during sporulation. C. Upone ingestion by susceptible insects they are converted into active form and kill them by inhibition of ion transport in the midgut. D. The proteins encoded by the gene Cry II Ab contrls com borer.

Consider the following four statements (a-d) and select the option which includes all the correct ones only :- (a) All the time of inspiration , contraction in diaphragm and external intercostal muscles take place. (b) Normal breathing is also called as abdominal breathing. (c ) Expiration during sneezing, coughing, yoga is normal expiratio during which IICM and abdominal muscles relax. (d) Inspiration can occur if the pressure within lungs (intra pulmonary pressure) is more than the atmospheric pressure.

Read the following statements about phylum Annelida. Identify the true and false statements and select the correct option after referring to the given table . A. Annelids are diploblastic , metamerically segmented , coelomate animals. B. Their neural system consists of paired ganglia connected by lateral nerves to a single ventral nerve cord . C. They process longitudinal and circular muscle fibres which help in locomotion . D Nephridia help them in osmoregulation and excretion.

Read the following statements and choose the correct one from the options given below. (i) Hydroponics is the practice of growing plants in nutrient - enriched water , without soil. (ii) Hydroponics has been successfully employed as a technique for the commercial production of vegetables such as tomato. (iii) Hydroponics methods require purified water and non - mineral nutrient salts. (iv) The nutrient solutions should not be aerated to obtain optimum growth. (a) (i) and (ii) only (b) (i) and (ii) only (c) (i) , (iii) and (iv) only (d) (i) , (ii) , (iii) and (iv)

Given below are four statements A to D, select the option in which two statements are correct? A: In earthworms deelopment is indirect and the larva is trochophore larva. B: A mutual exchange of sperms occurs between two worms during mating. C: Fertilisation is internal occurs within the cocoon deposited in soil D: About 3 weeks are required for development, each cocoon produces two to twenty baby worms with an average of four.

AAKASH INSTITUTE ENGLISH-TEST 1-Examplle
  1. Complete the given statements by choosing th correct option for A, B, ...

    Text Solution

    |

  2. Pollen grains are shed at two-celled stage in angiosperms.Find the cor...

    Text Solution

    |

  3. An aquatic plant which is pollinated by water is

    Text Solution

    |

  4. An angiospermic plant has the following charecteristics.Identify the t...

    Text Solution

    |

  5. Select the correct statements about apomitic seeds.a)these seeds are p...

    Text Solution

    |

  6. Paethenocarpic fruits

    Text Solution

    |

  7. A typical angiospermic seed consist of all,except

    Text Solution

    |

  8. Persistent nucellus in the seeds of black pepper is called

    Text Solution

    |

  9. Both autogamy and geitonogamy are prevented in

    Text Solution

    |

  10. Select the odd w.r.t. the ploidy level of cells of embryo sac.

    Text Solution

    |

  11. Generative cell of pollen grain

    Text Solution

    |

  12. The outer layer of sporoderm which helps in fossilization of pollen gr...

    Text Solution

    |

  13. The innermost layer of anther wall whose cells nourish the developing ...

    Text Solution

    |

  14. If the chromosome number in a meiotically produced gamete of a plant i...

    Text Solution

    |

  15. Male gametes require water to reach the female gamete in

    Text Solution

    |

  16. China rose is

    Text Solution

    |

  17. Heterogametes are found in

    Text Solution

    |

  18. In flowering plants,which of the following structures is present befor...

    Text Solution

    |

  19. Pollen grains are the carrier of male gametes in

    Text Solution

    |

  20. Syngamy does not occur outside the body of the organism in

    Text Solution

    |