GUYS PLEASE HELP ME ASAP

The critical period for development, when exposure to disease prenatally can have the most devastating effects of growth, is

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

*i’ll mark you brainliest to whoever answers the fastest with the right answer * if someone runs a red light in front of you, and you choose not to slow down or steer away, you will a. not be at fault if there is a collision b. be partially at fault if there is a collision c. have to appear in court if there is a collision d. probably not be involved in a collision