__________ are not self-sustaining cellular entities -- they consist only of nucleic acids enclosed by a protein __________

Fill in the blank(s) with correct word


viruses; coat

Anatomy & Physiology

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The use of the term "origin" to describe a muscle attachment that doesn't move during contraction is misleading.

Answer the following statement true (T) or false (F)

Anatomy & Physiology

Blocking ?2-adrenergic receptors prevents airway ________.

A. dilation B. constriction

Anatomy & Physiology

When body temperature decreases below the normal range, thermoreceptors in the skin and hypothalamus detect the decrease in body temperature. The heat-promoting center of the hypothalamus is activated, which sends signals to blood vessels and skeletal muscles. In response, blood vessels in the skin constrict and skeletal muscles shiver. Determine the part of this negative feedback loop that serves as the control center.

A) hypothalamus B) thermoreceptors C) blood vessels and skeletal muscles D) body temperature

Anatomy & Physiology

________ is the main form in which Carbon dioxide is carried in the blood

A- Carbonic anhydrase B- Carbonic acid C- Carbon dioxide D- Bicarbonate ion

Anatomy & Physiology