How might an entire insect be preserved?

soft and hard tissues turn the insect into rock.
tree sap flows over the insect and hardens.
sediment accumulates over the insect and hardens.
carbon from the decaying insect leaves a print on a rock.

Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?

Which of the following units is not an official si unit? mole liter kilogram ampere

Scientist think that animals with remarkably similar embryo development probably shared a common ancestor