Which system is aided by the digestive system's absorption of calcium, potassium and sodium?
a. muscular system
b. urinary system
c. endocrine system
d. skeletal system
e. sensory system
A
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Which one of the following is NOT associated with phloem tissues?
A. sieve tubes B. companion cells C. tracheids D. parenchyma cells E. plasmodesmata
One way in which organisms may exhibit resistance to a drug is the ability to pump the drug out of the cell immediately after it has entered.
Answer the following statement true (T) or false (F)
The process by which a molecule gives up a functional group, and a different molecule immediately
accepts it, is a. condensation. b. cleavage. c. functional group transfer. d. electron transfer. e. rearrangement.
Which process involves an increase in entropy of the system?
A) freezing of ice B) any spontaneous process C) combustion of paper D) formation of raindrops E) synthesis of cellulose