Which of the following pairs is not an example of a cytokine and its function?
A) tumor necrosis factors: induce inflammation and kills tumor cells
B) interleukins: regulate inflammation, fever, T cell development, and innate and adaptive immune responses
C) interferons: produced by virus-infected cells to signal neighboring cells to mount antiviral defenses
D) chemokines: recruit white blood cells to areas of injury or infection
E) eicosanoids: promote the replication and gathering of leukocytes
Answer: E
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The regular fluctuations in size of animal populations are termed _____
I) population cycles II) population dynamics III) growth factors A) only I B) only II C) only III D) only II and III E) I, II, and III
Meiosis in flowering plants gives rise to cells that are ____
a. haploid gametophytes b. diploid sporophytes c. sporophytes that can be haploid or diploid d. diploid gametophytes e. haploid sporophytes
The APOE gene encodes ____
a. lipoproteins b. surface antigens c. myofilaments d. hydrolytic enzymes e. receptor proteins
The transfers of motor, sensory, and cognitive information between the brain hemispheres is facilitated by the major neural connection between the right and left hemispheres of the human brain. This "bridge" is called the
A. motor cortex. B. reticular formation. C. basal nuclei. D. thalamus. E. corpus callosum.