Which of these statements about human evolution is correct?
A) The ancestors of Homo sapiens were chimpanzees.
B) Human evolution has proceeded in an orderly fashion from an ancestral anthropoid to Homo sapiens.
C) The evolution of upright posture and enlarged brain occurred simultaneously.
D) Different species of the genus Homo have coexisted at various times throughout hominin evolution.
Answer: D
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The West African black rhino, one of four subspecies of rhinoceros, was declared extinct in 2006. Their horns were believed by many to hold medicinal value. What is the most likely reason for the extinction of the West African black rhino?
A. habitat loss B. overexploitation C. introduced species D. pollution E. climate change Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about causes of extinction? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?
Systemic fungal infections are difficult to treat because active antifungal drugs cause significant host toxicity
Indicate whether the statement is true or false.
A(n) ____ has both biotic and abiotic components
a. population b. community c. ecosystem d. species e. genus
which foods good source of fiber
What will be an ideal response?