during aerobic exercises such as dancing, as glucose is used by the muscles, a. slow-twitch muscles produce glucose anaerobically b. glucose use decreases c. fast-twitch fibers absorb more glucose d. glucose use increases

The correct answer is b. glucose use decreases.

In aerobic exercises, oxygen is used for generation of energy. The aerobic exercises are performed in such a way which are at moderate levels of intensity and extend over longer time duration. The oxygen thus used in the process to breakdown glucose and fats to energy rich molecules of ATP or Adenosine Triphosphate. In aerobic exercises initially the glycogen is broken into glucose and then in its absence the metabolism of fat is initiated.

The moderate intensity exercises for longer period results in decrease of the plasma glucose levels.

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.