Refer to the accompanying figure. The common anthropoid ancestor would be found at which position?
a. 13
b. 12
c. 11
d. 10
e. 9
b
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Which of the following statements about eukaryotic gene expression is true?
a. Transcription occurs only within the nucleus. b. Transcription occurs after protein translation. c. Translation occurs in the nucleolus. d. Ribosomes translate tRNA into protein.
A key advantage of having a four-chambered heart is ____
a. only oxygen-rich blood flows to tissues b. blood pressure in the separate circuits is not independently controlled c. two separate circuits are possible d. lungs are only possible with a four-chambered heart e. blood oxygenates more quickly
Who proposed the idea that many species that had once existed were now extinct?
1.Cuvier 2.Darwin 3.Lamarck 4.Wallace
The __________ is a sedimentary cycle; Earth's crust is the largest reservoir, and there is no major
gaseous form. Fill in the blank(s) with the appropriate word(s).