Granite,chalk,slate, that si the only three i can think of at the moment
You are given the mass of the metal block, but you must calculate its volume using the measurements of the given dimensions. For a rectangular solid, volume = length x width x height; therefore, the volume of the block is (3 cm)(5 cm)(4 cm) or 60 cubic centimeters. The density is 14 g/60 cc or 0.23 g/cc.
<span> Eukaryotic cells are a lot more complex. They
have a nucleus in a nuclear membrane, where DNA or other genetic
information is stored, as well as lots of organelles that serve
different functions.</span>
Excretion is the only effective way invertebrates fight disease. Because they don't have an immune system working daily, invertebrates only have the capacity to excrete and cleanse their body of harmful materials.
