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The heart lies between the lungs directly behind the ______.

What type of antibody is responsible for allergic responses?

Hitting the “funny bone” and experiencing a painful tingling sensation is actually a contusion to the ulnar nerve.

Relative dating assumes that lower rock layers have older fossils than newer layers

Which of the following muscles performs actions in the frontal plane about the sagittal axis?

53. Receptors are parts of the nervous system that allow it to

72. Which space associated with the spinal cord meninges contains cerebrospinal fluid?

47. The structure responsible for attaching muscle to bone is a

57. When transmission occurs at a synapse, neurotransmitter is released by

_______ are composed of similarly specialized cells that perform a common function in the body.