Semifluid medium of the nucleus containing chromatin.
What will be an ideal response?
nucleoplasm
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Peter Sheldon found that the number of tail “ribs” in ____ changed over a 3 million year period with no evidence of
speciation.
a. horses b. trilobites c. insects d. humans e. ectoprocts
TRAIT SPECIESABCDE101111200111310101401111500001610101 The table shows the distribution of traits (A-E) in six extant species (1-6). A "0" indicates the ancestral condition, and a "1" indicates the derived condition. Which pair of species shares the greatest number of derived characters (synapomorphies)?
A. 6 and 3 B. 6 and 1 C. 5 and 6 D. 1 and 4 E. 5 and 1
Both necrotizing fasciitis and gas gangrene are diseases characterized by rapid, spreading tissue necrosis. Compare and contrast the infectious agents, the pathology and treatment
What will be an ideal response?
Why did animal life probably diversify during the "Cambrian explosion"?
a. predator-prey relationships stimulated animal diversity b. changing sea levels increased available land for animal habitat c. increases in atmospheric oxygen allowed larger body sizes d. the permian extinction left many vacant niches e. A and C