Exam 1

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removal of wastes produced by metabolic reactions is

excretion

Positive feedback mechanisms

move conditions away from the normal state

Homeostasis exist if concentrations of water, nutrients, and oxygen in the body are balanced and heat and pressure

remain within certain limited ranges

Homeostasis is

tendency of the body to maintain a stable internal environment.

Specialized cell types organized in a way that provides a specific function form

tissue, which build organs

Maintaining a stable internal environment typically requires

Negative feedback mechanisms

Anatomy and physiology are difficult to separate because

Physiological functions depend on anatomical structure.

An investigator who conducts an experiment to determine how temperature changes affect the rate at which the heart beats is most likely a

Physiologist

In negative feedback mechanisms, changes away from the normal state

Stimulate changes in the opposite direction

The thoracic cavity lies the abdominopelvic cavity

Superior to

In all organisms, the basic unit of structure and function is

The Cell

Which of the following illustrates a positive feedback mechanism

Uterine contractions during childbirth

Metabolism is defined as

all the chemical reactions occurring in an organism that support life

Pneumothorax (collapsed lung) is a condition that occurs when space forms between the lung and the wall of the pleural cavity. The space would be between

The parietal pleura and visceral pleura


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