Prokaryotes that harvest both energy and carbon atoms from organic molecules are called
A. photoautotrophs.
B. chemolithoautotrophs.
C. photoheterotrophs.
D. chemoheterotrophs.
E. nitrogen fixers.
D. chemoheterotrophs.
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Animal classification has undergone a reassessment in recent years because of:
A. Carl Linnaeus' new data B. comparisons of DNA and rRNA among different taxa C. new, genetically engineered species D. developing resistance to antibiotics E. all of the choices provided
The concentration of CO2 in the atmosphere is lower than its concentration in the oceans
Indicate whether the statement is true or false
Which of the following processes requires oxygen?
A) The Krebs cycle B) Glycolysis C) The ETC D) Fermentation
Moss A produces gametes in May, and moss B produces gametes in June. This is an example of a/an ________ isolating mechanism
A) post-mating B) temporal C) behavioral D) geographic