Which one of these examples did lamarck use to support his theory, which eventually was proven incorrect?
a)giraffes evolved their long necks by stretching.
b)wading birds evolved their long legs by stretching them to remain dry.
c)children of professional weight lifters are born with normal-sized muscles.
d)chameleons can change their skin color to protect themselves from predators.

What are two ways in which waves erode the land?

Which statement best describes a typical difference that could be found between the "analysis" and "conclusion" sections of a lab report? a) only the "conclusion" describes errors that occurred during the experiment, and only the "analysis" section suggests further research. b) only the "analysis" section includes specific data comparisons, and only the "conclusion" section suggests further research. c) only the "analysis" section discusses whether the original hypothesis was supported, and both sections include graphs of data. d) only the "conclusion section discusses whether the original hypothesis was supported, and both sections suggest further research.(the answer is b i just took the test)

This is an active transport mechanism by which cells pump sodium and potassium ions against the concentration gradient