Molecules that do not readily dissolve in water are called
A) hydrophobic.
B) hydrophilic.
C) electrolytes.
D) isophilic.
E) isophobic.
Answer: A
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Indicate whether the statement is true or false
The neurotransmitter orexin plays a role in:
A) the regulation of metabolism. B) the promotion of sleepiness. C) body temperature regulation. D) the promotion of wakefulness.
Each ___ connects with a single lobe of a lung.
a) tertiary bronchus b) secondary bronchus c) primary bronchus d) trachea
Answer the following statements true (T) or false (F)
1. An atom with 15 protons would have an atomic mass of 15. 2. An atom with 15 protons would have an atomic number of 15. 3. An atom with 15 protons and 15 electrons would have an atomic mass of 30. 4. An atom with 15 protons and 15 neutrons would have an atomic mass of 30. 5. Neutrons have no electrical charge.