Home
Class 12
BIOLOGY
[A] : Amniotic fluid serves as a protect...

[A] : Amniotic fluid serves as a protective cushion.
[R]: It breaks the mechanical shocks and lessens the effect of changes of temperature.

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ANIMAL KINGDOM -NONCHORDATES

    TRUEMAN BIOLOGY|Exercise MCQ|283 Videos

  • APPLICATION OF BIOTECHNOLOGY

    TRUEMAN BIOLOGY|Exercise Multiple Choice Questions|122 Videos

Similar Questions

Explore conceptually related problems

(i) The pressure and temperature of 0.8 g of He gas are 1 atm and 298 K respectively. If 400 J of heat is applied to the gas at constant volume, what will be change in internal energy and the final temperature of the gas ? (ii) If the same amount of heat is applied to the gas at constant pressure, then what will be the change in internal energy and the final temperature of the gas ? For both the cases, assume He gas behaves ideally and its C_(V)=(3)/(2)R .

A 20 kg load is suspended from a copper wire of radius 1 min. If the wire suddenly snaps, does its temperature change? Calculate this change in temperature. For copper Young's modulus =12xx10^(10)"N.m"^(-2), density ="9000 kg.m"^(-3) , specific heat = "100 cal.kg"^(-1).K^(-1) . Mechanical equivalent of heat = "4.2 J.cal"^(-1),g=9.8m.s^(-2) .

For an ideal gas, C_(V)=(3)/(2)R . (a) What will be the change in internal energy (DeltaU) of 1 mole of an ideal gas if its temperature is increased by 4K at constant volume ? What would be DeltaU if the temperature of this gas is increased by the same amount of constant pressure? keeping pressure constant if the temperature of that same amount of gas is increased by 4K then what will be the change in internal energy (DeltaU) of that gas? (c) give reason for different values of DeltaU and DeltaH ?

[A] : Extracellular fluid serves as the sanitary drainage line of the body [R] : Extracellutar iiuid collects excess H_2O, CO_2 and metabolic wastes from all tissues of the body.

A liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. (1) What is the initial effect of the change on vapour pressure? (2) How do rates of evaporation & condensation change initially? (3) What happens when equilibrium is restored finally and what will be the final vapour pressure?

TRUEMAN BIOLOGY-Animal Physiology -ASSERTION AND REASON
  1. [A] : [A]: Spermatogenesis occurs in the seminiferous tubules of the t...

    Text Solution

    |

  2. Statement 1 : In a Graafian follicle, the primary cell, the and the f...

    Text Solution

    |

  3. [A] : Amniotic fluid serves as a protective cushion. [R]: It breaks...

    Text Solution

    |

  4. [A]: Entry of sperm brings about a rearrangement of materials of cytop...

    Text Solution

    |

  5. A : in morula stage the cells divide without any increase in siz...

    Text Solution

    |

  6. [A]: Brain does not affect in the absence of glucose. [R]: Glucose ...

    Text Solution

    |

  7. [A]: After operation, menstrual cycle in woman may be stopped. [R]...

    Text Solution

    |

  8. Assertion : In placental mammals the placenta is connected to the e...

    Text Solution

    |

  9. Assertion: Smaller the organism higher is the rate of metabolism per g...

    Text Solution

    |

  10. [A] : Haversian canals are inter connecting canals that run usually lo...

    Text Solution

    |

  11. [A]: Conjunctiva is composed of squamous epithelium and is continuous ...

    Text Solution

    |

  12. [A]: During ovarian cycle follicles are controlled by gonadotropic hor...

    Text Solution

    |

  13. [A] : Hydrostatic pressure in blood forces water and other solutes of...

    Text Solution

    |

  14. [A]: Emboly involves the invagination and involution through bottling ...

    Text Solution

    |

  15. [A]: Each testis is attached to the abdominal wall by a ligament and u...

    Text Solution

    |

  16. [A]: Taste buds are called the sense organs for olfaction [R]: Tas...

    Text Solution

    |

  17. (A]: Little rotation and bending of the vertebral column is possible. ...

    Text Solution

    |

  18. Assertion - Muscle as a whole does not obey All-or-none law. Reaso...

    Text Solution

    |

  19. [A]: Generally the intraspecific competition is more intense than inte...

    Text Solution

    |

  20. [A]: The tadpoles become giant tadpoles when fed on thiourea. [R]: ...

    Text Solution

    |