Home
Class 12
BIOLOGY
Statement (S). Marine lampreys migrate t...

Statement (S). Marine lampreys migrate to rivers for spawning
Reason (R). Marine lampreys return to sea water after spawning

A

Both S and R are correct but R is not correct explanation to S

B

Both S and R are correct and R is correct explanation to S

C

S is wrong but R is correct

D

S is correct but R is wrong

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • VERTEBRATA-AGNATHA AND PISCES

    DINESH PUBLICATION|Exercise Check Your Grasp|9 Videos
  • VERTEBRATA-AGNATHA AND PISCES

    DINESH PUBLICATION|Exercise Check Your Grasp|9 Videos
  • TRANSPORT IN PLANTS

    DINESH PUBLICATION|Exercise CHECK YOUR GRASP|22 Videos
  • VIRUSES VIROIDS AND PRIONS

    DINESH PUBLICATION|Exercise CYG|13 Videos

Similar Questions

Explore conceptually related problems

Statement(S). Marine fishes have aglomerular kidneys Reason(R ). Aglomerular kidneys increase the loss of water through urine

Fill in the blanks : Fishes showing migrations from sea water to fresh water for spawning are termed ………., fishes while those migrating form fresh water to sea water are called ………, fishes .

Assertion. Petromyzon ascends the rivers to spawn. Reason. It destroys foodfishes.

Assertion (A):Despite low evaporation and stable strati fication of the atmosphere, salinity is high in polar regions. Reason (R): Sea water freezes leaving the remaining water saline than before. Codes :

Statement (S) : Respiratory system of Periplaneta is "polyneustic" type Reason ( R) : In Periplaneta thoracic spiracles help in inspiration

Main reason of water bloom in rivers, lakes, sea etc. is:

These question consist of two statements each printed as Assertion and Reason. While answering these questions you are required to choose any one of the following four responses : Assertion : Red tide is casued by Gonyaulax . Reason : Gonyaulax is marine dinoflagellate . The accumulate in sea to provide colour and cause the red tide .