The diagram represents an object moving at constant speed in a circle. What on the diagram would indicate that the object is accelerating?

A) The object has a mass m.
B) The object is at a radius r.
C) The direction of the velocity V.
D) There is a net inward force, Fc.

Consider a culture medium on which only gram-positive organisms such as staphylococcus aureus colonies can grow due to an elevated nacl level. a yellow halo surrounds the growth, indicating the bacterium fermented a sugar in the medium, decreasing the ph as a result and changing the color of a ph indicator chemical. this type of medium would be referred to as a differential and enrichment culture.