One of the researchers proposes using oxygen gas production to measure reaction rates. Which of the following statements best justifies the use of the proposed modification as a way of creating an appropriate control for the investigation?
A
The experiment can be repeated without hydrogen peroxide, which will help eliminate an uncontrolled variable.
B
The experiment can be repeated without peroxidase, which will introduce a second independent variable.
с
The experiment can be repeated without guaiacol, which will reveal the effect of guaiacol on the reaction rates.
D
The experiment can be repeated without water, which will reveal whether the reaction can occur inside a living cell.

c genetic engineering

i would spend it with those i love the most.i would do whatever to make up for those i have hurt intentionally or unintentionally.i would in all possible ways try to comfort the ones who love me nd of all i would gather courage nd say sry to my best friend

osteogenesis imperfecta (oi) refers to a congenital ailment of bones. in the condition, the bones become brittle or fragile. this ailment is a general result of the defect or mutations in the genes (colia1 or colia2). this mutation results in imperfect collagen formation either in quantity or quality wise.  

there are eight kinds of oi defects, and each kind varies with certain distinctions in symptoms. the usual symptoms include frequent bone fractures, loss of hearing in infants, protruding eyes, discoloration of the white in the eyes, respiratory issues, loosening of the joints, short stature, and other symptoms.