What special feature of the ovum is facilitated by the production of polar bodies?
A. large size of the cell
B. extra layers of plasma membrane
C. triploidy
D. large size of the nucleus
A. large size of the cell
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All of the following are common habitats or hosts of chytrids EXCEPT ________.
A. freshwater B. mud C. insects D. the human intestine E. soil
Ernst Mayr was responsible for ____
a. discovering new species atop New Guinea’s Foja Mountains b. standardizing a two-part naming system c. explaining the theory of natural selection d. describing the biological species concept e. identifying that all organisms contain DNA
Hydroxyurea has been shown to switch off cell division. Indicate whether the statement is true or false
What happens to a dust particle that is too small to fall from the inspired air and land in the alveoli?
A) It lands in the respiratory bronchiole, where it is coughed out B) It lands in the mucociliary ladder, where type II macrophages phagocytize it. C) It lands in the mucociliary ladder, where it is moved to the trachea to be exhaled. D) It lands in the bronchi, where it is absorbed. E) It is inhaled and then exhaled.