What feature of a dinosaur determines whether it is a saurischian or an ornithischian dinosaur?
a. size
b. habitat
c. feeding preference
d. pelvic bone structure
e. number of feet it walks on
d
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The Gram-positive rod that is also acid-fast and is a human pathogen is
A. Corynebacterium diptheria. B. Mycobacterium tuberculosis. C. Streptococcus pyogenes. D. Listeria monocytogenes.
Scanning electron microscopes bombard specimens with a stream of electrons; however, the specimen image is produce by electrons that are derived from atoms of the specimen itself rather than by the electrons used to bombard the specimen.
Answer the following statement true (T) or false (F)
Where are the molecules used to carry out photosynthesis encoded?
A) All are encoded in chloroplast DNA. B) Some are encoded in chloroplast DNA and others in nuclear DNA. C) All are encoded in nuclear DNA. D) Some are encoded in nuclear DNA and others in mitochondrial DNA.
Photosynthesis produces carbon dioxide and oxygen.
a. true b. false