BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
BuyFind

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter
Section
Chapter 41, Problem 9SQ
Textbook Problem

A male attains an erection when ___ .

  1. a. muscles running the length of the penis contract
  2. b. Leydig cells release a surge of testosterone
  3. c. the posterior pituitary releases oxytocin
  4. d. spongy tissue inside the penis fins with blood.

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