Ciliary muscles surround the lens in the eye
Indicate whether the statement is true or false.
TRUE
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The electrochemical gradient refers to
A. the difference in concentration of a substance between two areas. B. the difference in electrical charge between two areas. C. the combination of electrical and chemical gradients between two areas. D. the resistance a membrane has to allowing any charged chemical to pass through it.
Which of the following contributes to the atom’s atomic mass?
a. proton b. neutron c. electron d. both proton and neutron
Describe the location of the two major ventral body cavities
What will be an ideal response?
Chemical substances secreted by cells into the extracellular fluids and that regulate the metabolic function of other cells in the body are called ________
A) proteins B) enzymes C) antibodies D) hormones