In some plants, the direction of growth changes in response to contact with an object. This is called __________. Fill in the blank(s) with the appropriate word(s)
ANSWER: thigmotropism
Biology & Microbiology
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Nucleic acids to be analyzed using microarrays are usually tagged by covalent attachment of ________ molecules.
Fill in the blank(s) with the appropriate word(s).
Biology & Microbiology
The first photsynthetic autotrophs used the energy of the sun to split H2O because it is not very
electronegative. _______ Indicate whether the statement is true or false.
Biology & Microbiology
Adding untreated sewage to a freshwater lake would cause the biochemical oxygen demand to
A) increase. B) decrease. C) stay the same. D) The answer cannot be determined based on the information provided.
Biology & Microbiology
Which of the following serves as a connection between the nervous and endocrine systems?
A. hypothalamus B. pineal gland C. thyroid gland D. pancreas E. adrenal gland
Biology & Microbiology