The evolution of a true brain (superganglion) occurred in

a. animals with radial symmetry.
b. animals with bilateral symmetry
c. cnidarians.
d. echinoderms.
e. all animals having symmetry.


B

Anatomy & Physiology

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Muscle fibers are basically a collection of

A) synapses. B) muscles. C) sarcomeres. D) connective tissue fibers.

Anatomy & Physiology

The skeletal muscle shortens during concentric, isotonic contraction

Indicate whether the statement is true or false

Anatomy & Physiology

Which of the following describes the plasma membrane?

A) A single layer of phospholipids forms the membrane. B) A bilayer of phospholipids forms the membrane. C) A double layer of protein forms the membrane. D) The membrane is made up of cristae.

Anatomy & Physiology

The ureter expands into the substance of the kidney as the ________.

A. renal corpuscle B. hilum C. renal capsule D. renal pyramid E. renal pelvis

Anatomy & Physiology