The hominid australopithecines are generally accepted to be different from modern humans because
A. only humans are bipedal.
B. the human skull is apelike in appearance with a strongly projecting face.
C. human brains on an average are at least twice as large in size.
D. human arms are longer than legs.
E. only humans are meat-eaters.
C. human brains on an average are at least twice as large in size.
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Water transport from roots to leaves occurs mainly because of _____
a. pressure flow b. differences in source and sink solute concentrations c. the pumping force of xylem vessels d. transpiration, tension, and cohesion of water e. pressur flow and differences in source and sink solute concentrations
Each __________ develops into a pollen grain. Fill in the blank(s) with the appropriate word(s)
During protein synthesis, the step using DNA to make mRNA is called ______, and the step in which mRNA is "read" to make protein is called ________.
What will be an ideal response?
The discovery of which of the following
allowed researchers to determine the sequences of nucleotides in DNA molecules?
a. single-nucleotide polymorphisms b. restriction enzymes c. DNA assembly enzymes d. fragment length polymorphisms e. receptor proteins