Hemocyanins do not contain iron, but instead contain __________

Fill in the blank with the correct word.


Answer: Copper

Anatomy & Physiology

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Because the response of a nerve fiber is all-or-none, a greater intensity of stimulus does

not produce a stronger impulse. Indicate whether the statement is true or false

Anatomy & Physiology

These are the smallest blood vessels in our body.

A. Venules B. Arterioles C. Capillaries D. Venous sinuses

Anatomy & Physiology

Identify the true statement(s) about receptors:

a. They may be a specialized ending of an afferent neuron b. They exist that are specific for every modality in the environment c. When stimulated enough may cause Na+ channels in the afferent neuron to open d. They may be cells closely associated with the peripheral endings of afferent neurons e. All of the above are true.

Anatomy & Physiology

Which of the following is not part of the skin?

A. Epidermis B. Papillary layer C. Hypodermis D. Sratum basale E. Dermis

Anatomy & Physiology