The largest active carbon pool is
A) the atmosphere.
B) the oceans.
C) living organisms.
D) dead organisms.
B
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Adenine and guanine are nitrogen-containing bases found in nucleic acids
a. True b. False Indicate whether the statement is true or false
Which of these structures does not begin development during embryogenesis?
A. apical meristem B. vascular tissue C. floral primordia D. leaf primordial E. ground tissue
Which element would the element lithium most likely form an ionic bond with?
a. Aluminum; atomic number = 13 b. Chlorine; atomic number = 17 c. Magnesium; atomic number = 12 d. Nitrogen; atomic number = 7 e. Silicon; atomic number = 14
What is the name of a form of extrachromosomal inheritance that is due to transmission of symbiotic or parasitic microorganisms?
A) uniparental genome transfer B) infectious heredity C) pathogenic paternal transfer D) organellar inheritance E) microbial genomic transfer