What do you know about dependent variables?How does it relate to the question?
What will be an ideal response?
This is what the
researcher is measuring after making changes in the independent variable.
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Many birds, such as seagulls which rarely drink fresh water, deal with the osmotic stress of taking in large quantities
of salt in their food mainly by ____.
a. active transport of ions into the body through their feet b. excreting nitrogenous wastes through their kidneys as urea c. active transport of ions out of the body by chloride cells d. excreting excess salt through the actions of specialized salt glands in their heads e. maintaining high levels of urea and trimethylamine oxide in body fluids
Four of the following characterize a population in genetic equilibrium. Which one is the exception?
a. large population size b. no mutations c. differential reproduction d. absence of gene flow e. random mating
The method of determining the exact nucleotide order of a sequence of DNA is called ________ and is now an automated process that involves fluorescent dyes and automated machines.
A. DNA sequencing B. fluorescent in-situ hybridization (FISH) C. DNA microarrays D. polymerase chain reactions (PCR)
Un-branched polymers built from the same set of 20 amino acids is a _____________.
Fill in the blank(s) with the appropriate word(s).