Which organism is used to initiate the fermentation of cabbage to make sauerkraut?
A. Saccharomyces cerevisiae
B. Streptococcus lactis and Lactobacillus
C. Propionibacterium
D. Spirulina
E. Leuconostoc mesenteroides
Answer: E
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Chemolithotrophic ammonia-oxidization is a metabolic requirement for members of
A) Nitrosomonas. B) Nitropseudomonas. C) Nitrosomonas and Nitrosospira. D) Nitrosomonas, Nitrosospira, and Nitropseudomonas.
Which of the diagrams below best represents the anatomical system responsible for a spinal reflex circuit?
What will be an ideal response?
An adult brain weighs about
a. one pound. b. two pounds. c. three pounds. d. one half pound. e. ten pounds.
Which statement concerning phytochrome-induced responses is false?
a. All responses are very rapid and short-term. b. Red light causes potassium channels to open. c. The absorption of light by one part of the phytochrome molecule triggers a conformational change in another part. d. Phytochrome activates transcription of the gene for a subunit of rubisco. e. Far-red light causes potassium channels to close.