<span>This principle, or thought process, is that in basic sports fitness programs, all athletes training to continuously improve must always work harder an harder as their bodies become more used to their existing work out routines.</span>
The answer above is incorrect. The correct answer is James Watson accompanied by Francis Crick.
Answer: Fitness or camouflage
Explanation: C and D don’t make any sense
The answer is B- Vibrate <span>with the frequency of the received sound.</span>