HIV may affect
a. the human reproductive system.
b. the human circulatory system.
c. the human respiratory system.
d. the human immune system.
e. all of these.
Answer: d. the human immune system.
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Recall that in many plants, if the shoot apical meristem is removed, axillary buds become active and new lateral branches form. What is this an example of?
A. auxin dominance B. axillary dominance C. meristem dominance D. apical dominance
Meiosis and Changes in Number of Chromosomes
What will be an ideal response?
Which statement is false?
A. A molecule must be made of at least two atoms. B. Compounds are made of elements. C. Two atoms of oxygen make a molecule of oxygen. D. Chemical bonds form between molecules of solute and solvent. E. Elements are found in compounds and molecules.
Which disorder is characterized by bronchiole spasms?
a. emphysema b. asthma c. lung cancer d. high blood pressure e. apnea