The endocrine and nervous systems are considered ________ homeostatic regulatory mechanisms.

A. passive
B. intrinsic
C. extrinsic
D. active


Answer: C

Anatomy & Physiology

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The cells that account for over half of the brain's weight and outnumber neurons by at least 10 times are called _______.

Fill in the blank(s) with correct word.

Anatomy & Physiology

Bob witnesses an auto accident and impulses from the ________ division of the autonomic nervous system increase his heart rate.

A. parasympathetic B. sympathetic C. spinal D. cranial

Anatomy & Physiology

Match each class of biomolecules to the correct statement about it.

1. Glucose and ribose are examples; these molecules provide energy or structure. 2. ATP and DNA are examples; they transfer energy and encode genetic information. 3. Composed of units called amino acids, these can be linked into chains over 100 peptides long. 4. Triglycerides and steroids are members of this group. As a class they are hydrophobic. A. carbohydrates B. lipids C. proteins D. nucleotides

Anatomy & Physiology

Going up in levels from the individual atom to the entire organism, which body components are listed in ascending order?

A. Molecules, tissues, organelles B. Tissues, cells, organs C. Cells, molecules, organs D. Organelles, cells, tissues

Anatomy & Physiology