Scientists developed the ________ model after their studies of the fossil record revealed that some species appear quite suddenly and then remain essentially unchanged phenotypically for a long period of time.
A. Urey-Miller
B. Hardy-Weinberg
C. gradualistic
D. punctuated equilibrium
Answer: D
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You are a NASA scientist and have discovered an organism in outer space that contains its genetic material in the cytoplasm rather than in a nucleus. Given this characteristic, how might you classify this organism?
A. Eukaryote B. Prokaryote C. Heterotroph D. Autotroph
The traditional evolutionary diagrams are in the form
of a. interlocking circles. b. a wheel and spokes. c. a set of parallel lines. d. a tree. e. segmented bars.
Which is false about school age 6-12 years sleep?
What will be an ideal response?
Where do transcriptional regulators most commonly bind to?
a. major grooves in dsDNA b. minor grooves in dsDNA c. primary supercoils d. promoter sequences