In the circulatory system of a frog, the _____ circulation supplies the body tissues, while the ______ circulation supplies the respiratory surfaces.
A. systemic, pulmocutaneous
B. pulmocutaneous, systemic
C. systemic, cutaneous
D. pulmocutaneous, systolic
E. None of the choices for this question are correct.
A. systemic, pulmocutaneous
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Collecting data without a specific hypothesis in mind is called ______.
A. reductionism B. hypothesis testing C. discovery-based science D. theoretical E. All of these choices are correct
Organisms classified in the same genus share similar characteristics of morphology and are believed to have a common ancestor
Indicate whether the statement is true or false
The major divisions of the peripheral nervous system are the ____
a. somatic and autonomic systems b. sympathetic and parasympathetic systems c. peripheral and central systems d. afferent and autonomic systems e. cranial and skeletal nerves
Which of the following statements about mRNA half-life is false?
(a) The half-life of mRNAs produced from different genes will vary more than the half-life of mRNAs produced from the same gene. (b) The half-life of most eukaryotic-cell mRNAs is >24 hours. (c) The half-life of most bacterial mRNAs is shorter than the half-life of a typical eukaryotic mRNA. (d) The 5? and 3? untranslated regions of an mRNA often contain specific sequences that determine the lifetime of the mRNA molecule.