Answer:
The Moon completes a circle around the Earth in approximately 28 days.
<span>It is the variable in an experiment is not directly altered</span>
Birds and animals and maybe the bony fish.
<h2> The average height of people in different nations has has increased approximately by 10 centimeters.</h2><h3>It mostly comes down to nutrition and child-rearing styles. </h3><h3>Some scientists believe that the increase in teenage and out-of-wedlock pregnancies in the developed world may be an unanticipated consequence of improved nutrition.</h3>
Tobacco smoking greatly increased over the last hundred or so years, but the old wives' dictum was always that "Smoking will stunt your growth!"
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3. cell wall
The cell wall is a rigid supporting structure.