Which of the following is functionally a true predator?
A) parasite
B) planktivore
C) grazer
D) parasitoid
B
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Which of the following does not occur during childbirth?
A. All of these events occur during childbirth. B. shortening and widening of the cervix C. descent of the baby D. delivery of the baby E. delivery of the placenta
The researcher(s) who initially used X-ray diffraction to gather information on the DNA molecule was ______
A. Franklin B. Watson and Crick C. Hershey and Chase D. Pauling E. Chargaff
Which of the following statements pertaining to changes in the global economy of the 21st century is true?
A) Barriers to the free flow of goods, services, and capital have increased B) volume of global output has been growing more rapidly than cross-border trade and investment C) National economies are becoming more independent D) the world is moving toward an economic system that is more favorable for international business
Diatoms
A) are autotrophs with a glassy cell wall that contains silica. B) are mixotrophs. C) are heterotrophic protists that decompose dead plants and animals in freshwater habitats. D) include the malaria parasite.