The Ability of Sperm Cells to Move Along the Ductus

question 46

Multiple Choice

The ability of sperm cells to move along the ductus deferens is due to ________.

• A) peristaltic contractions
• B) enzymatic activity
• C) hormonal action
• D) gravity

---

Definitions:

Proportions

Fractions or percentages that represent part of a whole or a ratio of one quantity to another.

Proportions

Ratios that compare the part of a whole to the whole itself, often expressed in terms of a fraction or percentage.

Chi-squared Goodness-of-fit Test

A statistical test used to determine whether observed frequencies differ significantly from expected frequencies specified by a theoretical distribution.

Rule of Five

An empirical rule suggesting that extreme observations in data, more than five standard deviations from the mean, are rare.