Home
Class 11
BIOLOGY
At present, the Dipnoans are distributed...

At present, the Dipnoans are distributed over

A

Europe and North America

B

Latin America and Australia

C

Europe and Latin America

D

North America and Australia

Text Solution

Verified by Experts

The correct Answer is:
B
Leucosolenia shows simplest (ascon) type of canal system. In this, surrounding water enter the canal system through ostia. This water of sea enters into the spongocoel and pushed out readily thorugh osculum. Course taken by the water current in the body of spongs may be shown as under.
Ingressing `underset("Ostia")overset("Through")(rarr)` Spongocoel `underset("Osculum")overset("Through")(rarr)` To outside
Promotional Banner

Topper's Solved these Questions

  • ANATOMY OF FLOWERING PLANTS

    ERRORLESS |Exercise Anatomy Of Flowering Plants|397 Videos

  • ANIMAL TISSUES

    ERRORLESS |Exercise Animal Tissues|408 Videos

Similar Questions

Explore conceptually related problems

Electric field intensity at point P due to charge distributed over a sphere is:

If there is one hollow metallic tube which carries current uniformly distributed over its surface, which of the statements is correct?

Same current I flows in both wires. I is uniformly distributed over area. Graph of magnetic field

A long thick conducting cylinder of radius 'R' carries a current uniformly distributed over its cross section :

Find out the centre of mass of an isosceles triangle of base length a and alititude b. Assume that the mass of the triangle is uniformly distributed over its area.

In the Thomson's model of atom, which of the following statement are correct ? (i) The mass of the atom is assumed to be uniformaly distributed over the atom. (ii) The positive charge is assumed to be uniformaly distributed over the atom. (iii) The electrons are uniformaly distributed in the positively charged sphere. (iv) The electrons attract each other to stabilise tha atom.