How does a bone’s density relate to the bone’s function?

Some substances but not other can cross the (blank) membrane of a cell

If garbage is left on the street flies in microbes can arise from nothing to feed on it true or false

3. draw a topographic map that displays the following features: (4 points each) a. the contour interval is 20 meters. b. the point of lowest elevation is 960 meters. c. the point of highest elevation is 990meters. d. there is at least one sinkhole or depression, at any elevation. e. there is at least one steep slope and one gentle slope.