What is the definition of the standing crop biomass?
a. amount of sunlight absorbed by the plants
b. assessing the health of the plants
c. dry weight of the plants
d. number of plant species present
e. productivity of the plants
C
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In fast-growing Escherichia coli cells, multiple replication forks of genomic DNA allows binary fission to occur before the genome has been fully duplicated
Indicate whether the statement is true or false.
In 1908, chemist Kikunae Ikeda identified a new taste modality he called "umami", or "delicious" in Japanese. It gives a savory flavor to meat, seaweed, and tomatoes. What molecule is responsible for umami?
A. Na+ ions B. H+ ions C. glutamate D. Mg+2 ions E. Fe+2 ions
Which statement about the structure of RNA is true?
a. RNA is a double-stranded helix. b. RNA nucleotides contain cytosine and guanine. c. RNA nucleotides contain thymine and adenine. d. Deoxyribose is the five-carbon sugar in RNA.
In Linnaeus taxonomy closely species are assigned to the same genus , and closely related genera are
grouped into a. domains b. phyla c. classes d. families e. kingdoms