Multiple Choice
Most scientists believe that the dinosaurs went extinct due to ____.
A) runaway global warming
B) competition from early mammals
C) a meteorite impact
D) a pandemic disease
E) unknown causes
Correct Answer:

Verified
Correct Answer:
Verified
Q5: Suppose that a dinosaur's footprints were preserved,
Q6: Through _, a body part of an
Q7: When nineteenth century scientists compared desert plants,
Q8: Homologous structures share _.<br>A)function<br>B)all the same bones<br>C)ancestry<br>D)size<br>E)shape
Q9: Thomas Malthus proposed that _.<br>A)species gradually improved
Q11: How does carbon-14 dating work?
Q12: Certain species have weaker fossil records because
Q13: Individuals that are better suited to their
Q14: The wings of a bird and the
Q15: Match the statements with one of the