Because thaumarchaeote archaeons reduce CO2 in their environments to produce organic compounds and also oxidize inorganic substances to gain energy, they are:
A. chemoautotrophs.
B. chemoheterotrophs.
C. photoautotrophs.
D. photoheterotrophs.
A
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Because so few bacteria can be grown easily in culture, but all of them contain DNA, molecular techniques like PCR and SSU rRNA are used to be able to identify and quantify microorganisms as a "census" for diversity.
Answer the following statement true (T) or false (F)
What are soil fungi with hyphae that grow into plant roots and branch inside the cell walls of plant root cells?
a. chytrids b. glomeromycetes c. zygote fungi d. sac fungi e. club fungi
In the lac operon, what acts as the inducer?
A) glucose B) permease C) allolactose D) ?-galactosidase E) transacetylase
Mutations that eliminate a contiguous region in the Drosophila embryo's segmentation pattern are called ________
A) segment genes B) linkage genes C) compartment genes D) homeodomains E) gap genes