Persistent, usual, expected health-related state or event in a defined population over a given period of time
a. epidemic
b. pandemic
c. endemic
d. all of the above
Ans: c. endemic
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Answer the following statements true (T) or false (F)
1. Some algae are more closely related to plants than they are to other algae. 2. Protozoa are monophyletic. 3. The supergroup Excavata contain some of Earth's most recent eukaryotes. 4. Metaboly is a reduced level of metabolism that allows protists to remain dormant under stressful environments. 5. Paramylon are stored particles of carbohydrate.
The regulatory systems of the animal body maintain a relatively stable internal condition through a process called ____________________.
A. equilibrium B. absorption C. osmoreception D. homeostasis E. countercurrent exchange
Siderophores are bacterial proteins that compete with the host's
A) antibodies. B) red blood cells. C) iron-transport proteins. D) white blood cells. E) receptors.
Which statement does not represent a way in which meiosis and mitosis differ?
A) Mitosis can occur in either haploid or diploid cells, but meiosis only occurs in diploid cells. B) The daughter cells of a mitotic division are identical, but those of a meiotic division are not. C) Chromosome replication occurs before mitotic division but not before meiotic division. D) In anaphase of mitosis, sister chromatids are separated, but in anaphase I of meiosis, homologous chromosomes are separated. E) In mitosis, each cell divides only once, whereas meiosis consists of two successive divisions.