Prior to continental drift, North America and Eurasia formed a supercontinent called ________
Fill in the blank(s) with correct word
Laurasia
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Which of the following is not a component of a nucleotide?
A. a five-carbon sugar B. one or more phosphate groups C. a nitrogen-containing base D. a carboxyl group E. a five-carbon sugar, one or more phosphate groups, a nitrogen-containing base and a carboxyl group are all components of nucleotides.
A plant with its floral structures arranged around a central axis has _________________ flowers.
Fill in the blank(s) with the appropriate word(s).
Flexible bacteria with a helical shape are called
A. coccobacilli. B. spirilla. C. spirochetes. D. vibrios.
Oxidative phosphorylation is to cellular respiration as ________ is to photosynthesis.
-carbon fixation -the splitting of H2O -the ETC -light capture by chlorophyll -the reduction of NADPH