The correct answer is D.
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Where organisms are better adapted to their environments tend to survive and produce more kids!
D. The heat is there via convection from the sun
The answer is d. prevention of muscle strains. Other benefits
of flexibility are Joint health, prevention of low back pain injuries, temporary
reduction of post-exercise muscle soreness, relief of aches and pains, relief
of muscle cramps, maintenance of good posture and balance, relaxation.