Both chemical and mechanical digestion start in the mouth and continue in the stomach.

false

true

Answer and Explanation

The Correct Answer is A

Both chemical and mechanical digestion indeed start in the mouth (chewing and salivary enzymes) and continue in the stomach (gastric juices and muscle contractions). This statement is accurate.

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Correct Answer is ["A"]

Explanation

A. The cardiovascular system is primarily involved in transporting blood and nutrients but does not directly excrete waste.

B. The respiratory system: The respiratory system helps excrete carbon dioxide, a waste product of metabolism.

C. The digestive system excretes waste through the process of defecation.

D. The integumentary system (skin) excretes waste through sweat.

E. The urinary system is directly involved in the excretion of waste products through urine.

A. Wastes; nutrients and oxygen B. Oxygen and nutrients; wastes C. Wastes and nutrients; oxygen and carbon dioxide D. Carbon dioxide; nutrients

Correct Answer is B

Explanation

A. Wastes; nutrients and oxygen: Wastes pass from the fetal blood to the maternal blood, and nutrients and oxygen pass from the maternal blood to the fetal blood.

B. Oxygen and nutrients; wastes: Oxygen and nutrients pass from maternal blood to fetal blood, and wastes pass from fetal blood to maternal blood.

C. Wastes and nutrients; oxygen and carbon dioxide: Nutrients and oxygen pass from maternal to fetal blood, while wastes and carbon dioxide pass from fetal to maternal blood. This option is incorrect because it lists wastes and nutrients incorrectly.

D. Carbon dioxide; nutrients: Carbon dioxide and other wastes pass from fetal to maternal blood, while nutrients pass from maternal to fetal blood.

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Both chemical and mechanical digestion start in the mouth and continue in the stomach.

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Naxlex Comprehensive Predictor Exams

Which organ system does not excrete waste?

Correct Answer is ["A"]

Explanation

___________pass(es) from the maternal blood to the fetal blood. Fetal__________ pass(es) the other way.

Correct Answer is B

Explanation

A. The bicarbonate, phosphate, and protein: The major chemical buffer systems in the body are the bicarbonate, phosphate, and protein buffer systems.

Women have a tendency to retain water during part of the menstrual cycle because estrogen mimics the action of what?

The uptake of nutrient molecules into the body's own tissues is called_________.

Both chemical and mechanical digestion start in the mouth and continue in the stomach.

Glucose and amino acids are reabsorbed from glomerular filtrate by the___________.

In fetal circulation, blood bypasses the lungs by flowing through the

What are the major chemical buffer systems of the body?

Twins produced when a single egg is fertilized are called ______________twins. Twins produced from two eggs ovulated at the same time are called ______________ twins.