A microorganism grows in the lab on medium containing mineral salts but no organic compounds. The organism is likely to be a(n)
A) heterotroph.
B) autotroph.
C) chemotroph.
D) chemoheterotroph.
E) The answer cannot be determined from the information provided.
B
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The observation that island D. yakuba are more closely related to mainland D. yakuba than island D. yakuba are to D. santomea is best explained by proposing that D. santomea _____
A) descended from a now-extinct, non-African fruit fly B) arrived on the island before D. yakuba C) descended from a single colony of D. yakuba, which had been introduced from elsewhere, with no subsequent colonization events D) descended from an original colony of D. yakuba, of which there are no surviving members. The current island D. yakuba represent a second colonization event from elsewhere.
Vinegar is a good cleaning solution because it is a weak acid, while ammonia is a good cleaner
because it is a weak base.
Indicate whether the statement is true or false.Synthesis of which of the following compounds in a mature leaf would be least impacted by a temporary soil nitrogen deficiency?
A) DNA B) RNA C) amino acids D) cellulose
Explain how the 'greenhouse effect' works (in relation to global warming)
What will be an ideal response?