Foraminiferan shells are made of
A. cellulose.
B. chitin.
C. calcium carbonate.
D. peptidoglycan.
E. silica.
C. calcium carbonate.
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One way that the development of drug resistance in viruses has been reduced has been by the use of a cocktail of several drugs at high doses.
Answer the following statement true (T) or false (F)
Reproduction by cell division:
A. results in two daughter cells that are genetically identical. B. is asexual reproduction. C. persists in mature plant cells for continued growth. D. continues in mature adult humans to replace damaged and worn-out cells. E. All of these choices are correct.
True or False: To allow passage of the infant during child birth, the cervix widens and lengthens
A. true B. false
You are on the beach at Corpus Christi, Texas. High tide falls at noon. When will be the next high tide?
a. 6 pm that evening. b. 12 hours later, at midnight. c. 6 am the next morning. d. noon the next day.