Which is the correct sequence in the food chain in grassland?
1). Grass wolf deer buffalo
2). Grass insect bird snake
3). Grass snake insect deer
4). Bacteria grass rabbit wolf
Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is
1). Inefficient system of ventilation with little of residual air
2). Inefficient system of ventilation with high percentage of residual air
3). An efficient system of ventilation with no residual air
4). An efficient system of ventilation with little residual air
Which of the following is not heritable?
1). Point mutation
2). Chromosomal mutation
3). Somatic mutation
4). Gene mutation
Inheritance of total colour-blindness is
1). X-linked
2). XY-linked
3). Y-linked
4). none of these
Which of the following is not a fish?
1). Hippocampus
2). Eel
3). Shark
4). Whale