The student measures the rate of anaerobic respiration by counting the number of bubbles produced per minute. Explain how she could modify her apparatus to obtain a more accurate 
measurement of the rate of anaerobic respiration

Which incident would result in primary succession instead of secondary succession?

Johnny rode his bike 4 blicks down the street to his friend's house once he got to his friend house and realized he could not cone out to play he turned aroubd and went back home.what is displacement for the total bike ride? how did you determine this? what could we use as a reference point to determine he was in motion during his bike ride? why can you use it as a reference point

Can someone give me the answers to this?