All of the following are generally used in vaccines EXCEPT
A) toxoids.
B) parts of bacterial cells.
C) live, attenuated viruses.
D) inactivated viruses.
E) antibodies.
E
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What are the correct order of the basic steps of the scientific method?
a. observe --> hypothesize--> predict --> experiment --> interpret b. predict --> hypothesize --> experiment --> observe --> interpret
c. hypothesize --> observe --> predict --> experiment --> interpret d. observe --> predict --> hypothesize --> experiment --> interpret e. hypothesize --> predict --> experiment --> observe --> interpret
Philodendron flowers have to use a lot of energy to attract beetles as pollinators. This is similar to the energy used by many other flowering plants to produce in order to attract pollinators.
A. spores B. nectar C. seeds D. leaves E. pollen
In seed plants, which develops into a female gametophyte?
a. megaspore b. microsporangium c. microspore d. megasporangium e. sporophyte
Severe diarrhea accompanied by blood or mucus is called
a) food poisoning. b) intoxication. c) gastroenteritis. d) dysentery.