Home
Class 12
BIOLOGY
Assertion Point of an arrow larva is see...

Assertion Point of an arrow larva is seen in some molluscs .
Reason Point of an arrow larva is the characteristic of freshwater mussel .

A

If both Assertion and Reason are true and Reason is the correct explanation of Assertion

B

If both Assertion and Reason are true , but Reason is not the correct explanation of Assertion

C

If Assertion is true , but Reason is false

D

If Assertion is false , but Reason is true

Text Solution

Verified by Experts

The correct Answer is:
B
In molluscs , some freshwater mussels have the characteristic glochidium larva , which is also known as point of an arrow . It is so named because of its minute size (0.1 - 0.4 mm) . The glochidium is a special microscopic larval stage of larger freshwater mussels .
Promotional Banner

Topper's Solved these Questions

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises C) Medical entrances gallery (Collection of questions Asked in NEET & Various Medical Entrance Exams )|78 Videos

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises C Medical entrances gallery (Collection of questions Asked in NEET & Various Medical Entrance Exams )|1 Videos

  • ANIMALIA-II (HIGHER INVERTEBRATES)

    ARIHANT NEET|Exercise Chapter Exercises Match the columns|8 Videos

  • ANIMALIA -I (LOWER INVERTEBRATES)

    ARIHANT NEET|Exercise CHAPTER EXERCISES (Taking it together) medical entrances gallery (Collection of Questions Asked in NEET & in various Entrance Exams))|68 Videos

  • ANIMALIA-III (CHORDATES)

    ARIHANT NEET|Exercise MEDICAL ENTRANCES GALLARY (COLLECTION OF QUESTIONS ASLED IN NEET & VARIOUS MEDICAL ENTREANCE EXAMS)|76 Videos

Similar Questions

Explore conceptually related problems

Assertion A point charge produces a uniform electric field. Reason Due to a point charge, electric lines of forces are parallel and equidistant.

Assertion: Pork should be properly cooked to avoid Taenia infection. Reason Pork of pig contains Hexacanth and cysticerci larvae.

Assertion : Glutamine contains amide group Reason : Isoelectric point of glutamine is 7.

Assertion : Kinetochor helps in the movement of chromosomes. Reason : It has points for attachment of microtubules .

Assertion. Urochordate's tadpole larva is more chordata-like than the adult. Reason. Tadpole changes into an adult by retrogressive metamorphosis.

Assertion : Ancylostoma duodenale is odd world hook worm. Reason : Humans are infected when filariform larvae in the mosit soil penetrate the skin, usually feet or legs.