Chapter 39.2, Problem 2CC

Summary Introduction

To compare:

The problems posed by swimming and flying and how the animals overcome those problems.

Introduction:

Swimming is an activity that is carried out in water. As the water provides ample buoyancy, the problem of gravity is not faced. The drag that the water puts on the organism is a cause of problem for the organism.

Flying is an activity that is carried out in air. The major problem faced during flying is that gravitational pull prevents the organism to fly. Since air is a reasonably lighter medium, so the issue of friction is not observed.