Which muscles form the pelvic diaphragm?

A) Bulbospongiosus and Ischiocavernosus
B) Levator ani and coccygeus
C) Levator ani and ischiocavernosus
D) Coccygeus and bulbospongiosus
E) Superficial transverse perineal muscle and bulbospongiosus

A high degree of alertness is indicated in the EEG by

A) brain waves with a low frequency.
B) brain waves with a high amplitude.
C) brain waves with a medium amplitude and a medium frequency.
D) brain waves with a high frequency.
E) brain waves with a low amplitude.

In a human cell at prophase I, there are ____ tetrads.

A) 92
B) 46
C) 23
D) 2
E) 4