Travis sets up an experiment to determine the growth of sunflowers are affected by the application of a specific fertilizer. he places the same amount of seeds and the same amount of soil in pots, and then places the pots outside in a sunny location. of the 20 pots, 10 contain fertilizer and 10 do not receive fertilizer. travis waters all of the pots with the same amount of water, twice each week. what is the control in travis' experiment? a) the amount of water b) the type of seeds used c) the seeds with fertilizer d) the seeds without fertilizer

In what for do plants utilize nitrogen? why do they need nitrogen?

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Twin boys have girlfriends one of the couples have a baby would the dna of the lil baby be the same as the couples dna bc the boys are identical twins