Methane is usually released directly to the atmosphere in environments without an overlying ________ water zone.
Fill in the blank(s) with the appropriate word(s).
oxic
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The most common mutation in cystic fibrosis is the deletion of a single amino acid which results in a misfolded protein
a. True b. False Indicate whether the statement is true or false
Plants use what form of nitrogen to make the building blocks for proteins and nucleic acids?
a. nitrogen gas b. nucleic acids c. ammonium d. urea e. nitrous oxide
Fire can move, grow, reproduce, use energy, consume oxygen, and interact with its environment. Why is it not alive?
A) It does not have cells. B) It does not consist of complex, well-ordered structures. C) It does not pass on genes for traits to its offspring. D) All of the above are correct.
Prior to hunting, the population likely had more alleles for the 47 genes.
a. true b. false