Which of the following represents an ion?
A. Ca2+
B. He
C. H2
D. CO2
E. KCl
A. Ca2+
Biology & Microbiology
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Distinguish between stromatolites and biosignatures
What will be an ideal response?
Biology & Microbiology
A linear stretch of DNA that specifies the sequence of amino acids in a polypeptide is called a(n)
a. codon. b. intron. c. messenger. d. gene. e. enzyme.
Biology & Microbiology
Which group of organisms is responsible for primary production in a freshwater lake?
A. Phytoplankton B. Photosynthetic bacteria C. Moss D. Submerged plants E. Aquatic grasses
Biology & Microbiology
________ , also known as "jumping genes," are examples of mobile DNA elements.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology