Problems with sexual arousal in men typically take the form of failure to achieve or maintain an erection sufficient to engage in sexual activity through completion

A blind spot is a part of the visual field we can't see, where the _____________ connects to the_____________

A) retina; pupil B) cornea; iris C) optic nerve; retina D) optic nerve; sclera

During a classroom experiment, Jay found out that he could

sense a hair on his arm when it was barely touched with a pencil tip by Gerard. However, Jay had to wiggle a hair on Gerard's arm back and forth several times before Gerard could detect the sensation. The scientific explanation for this is that Jay and Gerard have different _____ thresholds. a) difference b) Weber's c) standard d) absolute