Study the position-time graph for a bicycle.

which statement is supported by the graph?

a) the bicycle has speed but not velocity.
b) the bicycle is moving at a constant velocity.
c) the bicycle has a displacement of 3 m.
d) the bicycle is not in motion.

their crystal patterns have been disrupted by stress

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.