Hydrogen bonds are:
A) the sharing of electrons between a hydrogen atom and another atom.
B) the electrostatic interaction between an atom that has lost an electron and an atom that has gained an electron.
C) the interaction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.
D) the strongest kind of bonds.
E) only found in water.
C) the interaction between a hydrogen atom covalently bonded to an electronegative atom and another electronegative atom.
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A common direct consumer of eelgrass (Zostera) is:
a. snails. b. waterfowl. c. sea cucumbers. d. manatees. e. sea stars.
The control in an experiment
a. makes the experiment valid. b. is an additional replicate for statistical purposes. c. reduces the experimental errors. d. minimizes experimental inaccuracy. e. allows a mixed group of comparisons among different organisms for the experimental group.
Over the past several decades, the overall trend for earth's temperatures has been
A. decreases in overall global temperatures at an accelerating rate, a phenomenon known as global cooling. B. a gentle trend towards colder winters and hotter summers, which averages out to be very little overall global temperature changes. C. cyclical periods of warming and cooling, known as global climate change. D. increases in overall global temperatures at an accelerating rate, a phenomenon known as global warming.
The cell primarily responsible for secreting the matrix of bone.
What will be an ideal response?