The fusion of sperm and egg is known as:

A) mitosis. B) cleavage. C) meiosis. D) fertilization.


Answer: D

Anatomy & Physiology

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

1. At the site of an injury, platelets become sticky and form a platelet plug. 2. Vitamin K stimulates the liver to produce more fibrinogen, which helps the blood clot more efficiently. 3. A thrombus is a clot that stays in the place where it was formed. 4. An embolus is part of a clot that has become dislodged and circulates through the bloodstream. 5. If a patient were having a heart attack caused by a blood clot, heparin would be an effective treatment in dissolving the clot.

Anatomy & Physiology

What do human cells require to carry out energy-yielding chemical reactions?

a. oxygen b. carbon dioxide c. salt d. ATP molecules e. sunlight

Anatomy & Physiology

When plasma CO2 increases, then

A) pH decreases. B) HCO3- decreases. C) CO increases. D) H+ decreases.

Anatomy & Physiology

Muscle tone is ________

A) the condition of athletes after intensive training B) a state of sustained partial contraction C) the ability of a muscle to efficiently cause skeletal movements D) the feeling of well-being following exercise

Anatomy & Physiology