Evolution is random
a. True
b. False
Indicate whether the statement is true or false
False
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Which of the following is an adaptation to land characteristic of gymnosperms but not ferns?
a. seeds b. spores c. vascular system d. alternation of generations e. flowers
The majority of the elements essential to life are found in what part of the periodic table?
A) The top third B) The middle third C) The bottom third D) Evenly distributed throughout the periodic table
Successful geographic dispersal occurs by
a. expansion of home range. b. jump dispersal across great distances. c. continental drift. d. all of these. e. none of these.
The origin of the mitochondrion and chloroplast is hypothesized to have involved
A. the absorption of RNA from prokaryotic cells. B. prokaryotic cells that became internal symbionts within an early eukaryotic cell. C. the fusion of two archean cells to form an early eukaryote. D. the uptake of free DNA from the environment. E. prokaryotic cells being engulfed and becoming external symbionts within an early bacteria cell.