Home
Class 11
BIOLOGY
Which of the following statements are tr...

Which of the following statements are true/false?
(a) Trimerous condition of floral whorl is characteristic of dicotyledons.
(b) Adiantum is also called walking fem.
( c) In gymnosperms, the vascular system consists of xylem without vessels and phloem without companion cells.

A

(a) and (b) are true and (c) and (d) are false.

B

(a) and (c) are true and (b) and (d) are false.

C

(a) and (d) are true and (b) and (c) are false.

D

(b), (c), and (d) are true and (a) is false.

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • PLANT KINGDOM

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|70 Videos
  • PLANT GROWTH AND DEVELOPMENT

    CENGAGE BIOLOGY ENGLISH|Exercise Archives|28 Videos
  • RESPIRATION IN PLANTS

    CENGAGE BIOLOGY ENGLISH|Exercise ARCHIVES|12 Videos

Similar Questions

Explore conceptually related problems

State whether the following statements are true or false.The condition in which the body suffers from acute oxygen shortage is called hypoxia. A. True B. False

Which of the following statements are true (A) The entire process of involuntary response to a peripheral nervous stimulation is called reflex action. (B)Information regarding changes in the environment is received by the CNS through the sensory organs which are processed and analysed. (C) Reflex action occurs without conscious effort (D) Reflex action requires the involvement of a part of the CNS (E) Signals from sensory organs goes to spinal cord via ventral root. Choose the correct options from given below:-

Consider an n-p-n transistor with its base - emitter junction forward biased and collector base junction reverse biased . Which of the following statements are true? a) electrons crossover from emitter to collector. b) Holes move from base to collector c) Electrons move from emitter to base d) Electrons from emitter move out of base without going to the collector

Which of the following statements is correct ? (A) Mycoplasma has no cell wall (B) Viruses can multiply only when they are present inside the living cell. (C) True sexuality s not found in bacteria (D) Mycoplasma can not survive without O_(2)

The diagram shows the structure of a fungal cell with different parts labelled as A,B,C and D. Which of the following statements are true with regard to the fungal cell structive? (i) A contains mucopolysaccharides which are also present in exoskeleton of insects and crustaceans. (ii) D are usually more than one in number in case of aseptate hyphae. (iii) Carotenes and xanthophylls are present in C, which harvest light energy for photosynthesis. (iv) B is the reverse food material, usually stored in the form of starch and oil.

Which of the following statement are false ? (a) Most cells are tiny with volume range of 1-100 nm^(3) (b) Some cells have microvilli to increases the absorptive surface area (c) All cells arise from pre-existing cells (d) In plants, translocation of solutes is performed by xylem vessels and tracheids (e) According to cell theory, all cells arise from abiotic material

Which of the following statements are true? If false, correct them: (a) Boron deficiency leads to stout axis. (b) Every mineral element that is present in a cell is needed by the cell. (c) Nitrogen as a nutrient element, is highly immobile in the plants. (d) It is very easy to establish the essentiality of micronutrients because they are required only in trace quantities.

Which of the following statements are true// false A. In Torpedo the electric organs are capable of generating strong strong electric shock to paralyze the prey B. Bony fishes use pectoral, pelvic, dorsal, anal and caudal fins in swimming C. Amphibians skin is moist and has thick scales D. Birds are poikilothermous animals E. The most unique mammalian characteristic is the presence of milk producing mammary glands by which the young ones are nourished

Read the following statement All ctenophores have solid tentacles which possess lasso cell without exception State true or false

Write true or false for the following statements: The temperature at which a liquid changes into gaseous state without any rise in temperature is called liqudfaction point. _________

CENGAGE BIOLOGY ENGLISH-PLANT KINGDOM-ARCHIVES
  1. Which of the following statements are true/false? (a) Trimerous cond...

    Text Solution

    |

  2. Flagellated male gametes are present in all the three of which one of ...

    Text Solution

    |

  3. In the prothallus of a vascular cryptogam, the antherozoids and egg ma...

    Text Solution

    |

  4. In gymnosperms, the pollen chamber represents

    Text Solution

    |

  5. Spore dissemination in some liverworts is aided by

    Text Solution

    |

  6. If you are asked to classify the various algae into distinct groups, w...

    Text Solution

    |

  7. In which of the following, gametes are produced by mitrotic division?

    Text Solution

    |

  8. In which one of the following male and female gametophytes do not have...

    Text Solution

    |

  9. Which of the following is heterosporous

    Text Solution

    |

  10. Selelct one of the following paris of important features distinguishig...

    Text Solution

    |

  11. Which one of the following plants is monoecious?

    Text Solution

    |

  12. Which one of the following has haplontic life cycle?

    Text Solution

    |

  13. Which one of the following is a vascular cryptogam?

    Text Solution

    |

  14. Which one of the following is a vascular cryptogam?

    Text Solution

    |

  15. Male and female gametophytes are independent and free-living in

    Text Solution

    |

  16. Algae have cell wall made up of

    Text Solution

    |

  17. Some hyperthermophilic organisms that grow in highly acidic (pH 2) hab...

    Text Solution

    |

  18. A prokaryotic autotrophic nitrogen fixing sym- biont-is found in

    Text Solution

    |

  19. Archegoniophore is present in

    Text Solution

    |

  20. Compared with the gametophytes of the bryophytes, the gametophytes of ...

    Text Solution

    |

  21. The gametophyte is not an independent, free-living generation in

    Text Solution

    |