Symptoms of immediate hypersensitivity (allergy) are caused by
a. release of chemical mediators by basophils.
b. degranulation of neutrophils.
c. release of chemical mediators by mast cells.
d. degranulation of IgE.
Answer: C
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Eukaryotes have the ability to take in nutrients by phagocytosis, whereas prokaryotes do not. Which of the following explains the advantage this brings to eukaryotes?
A. Eukaryotes are able to get bigger because they can now ingest larger materials. B. Phagocytosis provides eukaryotes with a way of obtaining more DNA for their genome, which allows them to become more complex. C. Phagocytosis provides eukaryotes with a way of obtaining more RNA for translation, which allows them to become more complex. D. Eukaryotes are able to exploit other, more complex materials for food that prokaryotes cannot. E. None of the answers options is correct.
The exchange surfaces of fish gills are arranged as rows of
A. lamellae. B. parabronchi. C. trachea. D. spiracles. E. alveoli.
In meiosis, interphase is followed by two successive rounds of cell division, meiosis I and II. Meiosis results in four haploid daughter cells because there is no ________ between these two meiotic cell divisions
Fill in the blank(s) with correct word
Any genetic differences between individuals in a population are called
A. polymorphisms. B. markers. C. alleles. D. SNPs.