Which type of leukocyte provides protection against parasitic worms?

Formation of a keloid is a result of underproduction of connective tissue.

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

The ________ nerve, which arises in the cervical plexus, innervates the diaphragm

A) ansa cervicalis B) lesser occipital C) thoracic D) phrenic E) supraclaviculars

An enzyme can only bind one reactant at a time.

a. true b. false

The atomic mass of a proton is

A. 2 atomic mass units. B. 1 atomic mass unit. C. -1 atomic mass unit. D. 0 atomic mass units.