Darwin's observations of finches was a study of their distribution, making it one example of the _______ evidence he collected as he developed theories on evolution.
What will be an ideal response?
biogeographical
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Geographic biodiversity "hot spots"
A. have the highest vascular plant species richness and ?3 unique ecosystems. B. have the greatest number of species that have lost >50% of their original range. C. contain ?10% of the world's vascular plant species and have lost >50% of their original range. D. have ?1500 endemic plant species and have lost ?70% of the original habitat.
What will occur when the translation machinery encounters a nonsense codon during protein synthesis?
a. A mutated protein will be produced. b. The nonsense codon is ignored. c. Protein synthesis will terminate. d. The cell will begin apoptosis.
Respiratory proteins such as __________ in red blood cells and __________ in muscle bind oxygen
and help maintain gradients that favor gas exchange. Fill in the blank(s) with the appropriate word(s).
Mitosis begins with which phase?
a. prophase b. metaphase c. anaphase d. telophase e. cytokinesis