Puberty in males marks the start of

a. sperm production.
b. testosterone production.
c. the emergence of secondary sexual traits.
d. fertility.
e. all of these.


Answer: e

Biology & Microbiology

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If you observe rod-shaped, pink cells on a slide that had just been Gram stained, you can assume that their cell envelope contains endotoxin.

Answer the following statement true (T) or false (F)

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If a solution contains fewer hydrogen ions than hydroxide ions, the solution can be described as ________.

a. acidic b. basic c. neutral d. both acidic and basic

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Specific cells in developing seeds and maturing fruits have receptors for ethylene, but cells in stems

generally do not.

Indicate whether the statement is true or false.

Biology & Microbiology

The endoplasmic reticulum is an

What will be an ideal response?

Biology & Microbiology