Question

Diffusion Question -

A shark can smell blood from a wounded animal from several miles away, explain how.

Answer 1

Answer:

Smells reach a shark through the current, and it would take time for the scent to travel that distance to a shark's nostrils .The motion of the ocean carriers smell molecules with it.so,the more motion the faster the smell will travel .The lemon shark ,for example, can detect a small drop of blood in the water.

Answer 2

Answer:

Shark have 100 times stronger sense of smell and olfactory system than human.their nostril located beneath their snouts are used only for smelling not for breathing.and they also have a capacity to detect the tiny amount of various compound in a water.they can easily detect small drop of blood in a ocean..due to their strong sense of smell