A sand dollar is a shell left behind by a flat relative of the sea urchin. Sand dollars typically have five semi-leaf shaped markings emanating from the center to the mid-line of the circular structure.
5 or 6 lines of longitude
Many catalogues of emission spectroscopy lines are published. These lines are not visible on all types of instruments.
they are : equator,antarctic circle,tropic of cancer,tropic of Capricorn and Arctic circle.
75,000
Longitudinal lines themselves are imaginary constructs, having no real width, and therefore, no angle to measure. The angle between longitudinal lines on a globe depend on how many longitudinal lines are used to encircle the globe. Assuming that all longitudinal lines are equidistant, the angle can be found by dividing 360 degrees by the number of longitudinal lines. Typically, a globe will be given 36 lines of longitude, so the angle between longitudinal lines is equal to 360 degrees divided by 36 lines, or 10 degrees.
Invertebrate
The sand dollar is a type of sea urchin classified as Clypeasteroida. They are usually very flat in appearance and burrow in the sand.
it does not matter how many lines
it does not matter how many lines
How many lines of symmetry does a rectangle have
4
There are no real lines. But conceptually there are infinitely many.
it depends how many spokes it has
zero lines.
It has 3 lines.......
5 lines
2