The build up of lactic acid will need oxygen to break it up. Lactic acid is why muscles feel tired after excess exercise
Answer:
I've sent a pic for answers
Well it depend what science are u talking about.
Physic would require algebra and something about graph (Reading graph)
Biology would require graphing and simple add and subtracting
Chemistry would require graph and know how each atom react to each other. <span />
Answer:
The answer is alleles :)
Explanation:
The two versions of the same gene are called alleles. The two alleles are formed at the same position, or locus, on the chromosome. REMEMBER: THE 2 ALLELES ARE GOTTEN FROM THE 2 GAMETES OF SEXUAL REPRODUCTION. THAT IS WHY THEY CAN DIFFER.
I hope I helped you !