The concentration of CO2 in the atmosphere is lower than its concentration in the oceans
Indicate whether the statement is true or false
T
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Certain plants that grow in environments where their roots are often under water need to provide ways of getting which of the following to the roots?
A. carbon dioxide B. carbon monoxide C. hydrogen D. nitrogen E. oxygen
Crossing-over occurs between
a) sister chromatids of the same chromosome b) chromatids of nonhomologus chromosomes c) non sister chromatids of a homologous pair d) Both b and c are correct
Appropriately named, ________ pain oftentimes is not detected until seconds or even minutes after an injury; this is due to the activation of chemically sensitive pain receptors
Fill in the blank(s) with correct word
Which of the following types of microbes might be found in the Dead Sea?
A) hyperthermophiles B) phototrophic bacteria C) methanogens D) actinomycetes E) halophiles