Sycon (Scypha), Spongilla (Fresh water sponge) and Euspongia (Bath sponge) are examples of which Phylum?
1). Coelenterata
2). Platyhelminthes
3). Ctenophora
4). Porifera
Which of the following is not among the 3 main classes of Algae?
1). Chlorophyceae
2). Rhodophyceae
3). Phaeophyceae
4). Gymnosperms
In male reproductive system, the testes are situated outside the abdominal cavity within a pouch called __________.
1). Glands
2). Scrotum
3). Testicular Lobules
4). Seminiferous Tubules
The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?
1). Mulching
2). Contour barriers
3). Rock dam
4). Terrace farming
As the river enters the plain it twists and turns forming large bends known as ____________.
1). crooks
2). flections
3). rounds
4). meanders