Explain streamline motion.

Explain chemotactic sex determination. /Explain sex determination in Bonellia.

The maximum velocity of flow of liquid for which the motion remains streamlined is known as ______velocity.

Which of the following is/are not the characteristics of the Class Osteichthyes? (i) Body is streamlined and mouth is terminal. (ii) Gills are convered by operculum. (iii) Skin convered with cycloid and placoid scales. (iv) Many of them are viviparous.

Vehicles are streamlined to reduce

Vehicles are streamlined to reduce

Very first moving vehicles are given streamline shape. Why ?

Explain excertion in cockroach. Explain structure and function of malpighian tubule.

Explain hypertension ?

Explain with illustraions motions in one,two and three dimension.