Two hormones that work together to elevate calcium levels in the body are ________ and ________.

A) parathyroid hormone; calcitriol
B) vitamin A; vitamin C
C) parathyroid hormone; calcitonin
D) growth hormone; calcitonin
E) vitamin D3; growth hormone


A) parathyroid hormone; calcitriol

Anatomy & Physiology

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Which of the following is not a feature of neurons?

A. Contractility B. Conductivity C. Secretion D. Excitability E. Chromatophilic substance

Anatomy & Physiology

When a small, polar solute binds to a membrane protein that then changes shape and transports the solute across the membrane, the process is known as

A. simple diffusion. B. channel-mediated diffusion. C. carrier-mediated diffusion. D. endocytosis. E. active transport.

Anatomy & Physiology

Triaxial joints of the body include ________

A) the hip and shoulder B) the knee and elbow C) the ankle and wrist D) intercarpal and intertarsal joints

Anatomy & Physiology

During embryonic development, the following major events occur except the formation of the ________.

A. embryoblast B. placenta C. extraembryonic membranes D. germ layers

Anatomy & Physiology