Which choice lists all of the major minerals, and NO trace minerals?
a. calcium, iron, phosphorus, sulfur, sodium, manganese, and potassium
b. calcium, sodium, potassium, phosphorus, sulfur, magnesium, and chloride
c. calcium, manganese, phosphorus, sulfur, sodium, chloride, and potassium
d. calcium, magnesium, iron, phosphorus, sodium, chloride, and potassium
Ans: b. calcium, sodium, potassium, phosphorus, sulfur, magnesium, and chloride
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Wound healing can be slowed by the presence of
A. normal microbiota. B. antiseptic ointments. C. sweat. D. foreign matter.
The cuticle of a plant is primarily for
a. retention of water. b. conduction of water. c. absorption of carbon dioxide. d. protection from strong sunlight. e. mechanical support.
Insect hormones and their receptors _____
A) act independently of each other B) are a focus in pest control research C) utilize cell-surface receptors only D) are active independently of environmental cues
Which of the following statements is a reason for NOT classifying viruses in one of the three domains of life (Bacteria, Archaea, Eukarya) rather than in a fourth separate domain?
A) Some viruses can incorporate their genome into a host's genome. B) Viruses direct anabolic pathways of host cells. C) Viruses are obligate parasites. D) Viruses are not composed of cells. E) All of the answers are correct.