The smaller muscular arteries and arterioles change their diameter in response to local conditions or to ________.
Fill in the blank(s) with the appropriate word(s).
sympathetic stimulation
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Hyperosmotic regulation is found in all freshwater animals
Indicate whether the statement is true or false
The process by which bile breaks down fat globules into smaller droplets is ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following muscles of the chest has its insertion on the humerus?
A. Internal intercostals B. Pectoralis minor C. Subclavius D. Serratus anterior E. Pectoralis major
Helium (HE) has an atomic number of 2. It is chemically stable because it
A) is neutral in electrical charge. B) readily ionizes to react with other atoms. C) has a full outer electron shell. D) will form a covalent bond with another He atom. E) lacks electrons, thus the He atom is stable.