Distinguish between quantitative and qualitative variation
What will be an ideal response?
ANSWER: Both types of variation describe phenotypic variation. Quantitative traits are those that vary
in small, incremental ways. Qualitative traits are those that exist in two or more discrete
states.
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Nerve impulses are electrical signals measured across which structure?
A. lipid sheath of Schwann cell B. plasma membrane of neuron C. synapse D. neuromuscular junction
Which of the following does not influence the strength of a stimulus?
1.frequency of action potentials 2.how many axons are responding 3.size of the action potentials 4.which axons are responding
The most oxygenated blood is indicated by the letter ____
a. A b. B c. C d. D e. E
When comparing two groups, the ______________, the more confident we are of the conclusion that a significant difference exists in the groups.
A) larger the variation in each group B) smaller the variation in each group C) smaller the difference between the two groups D) fewer the number of individuals in each group E) more variables we measure