The most common index
fossils are shells of invertebrates.
Give two reasons why this is so.

the most common index fossils are shells of invertebrates. give two reasons why this is so. Fusulinids make good index fossils. they are very abundant in marine sediment, widely distributed, and existed during a specific period in time.

Explanation:

learned in science class

did you mean: energy is defined ashyperactivitya caloric measurementthe ability to move matterthe ability to think and analyze this form of energy is called "energy in motion" or "energy of moving matter"potential energy kinetic energy electrical energy1 ptlights on a stage can be examples of all of the following forms of energy exceptelectrical energylight energythermal energysound energywhen one type of energy changes to another this is called energy energy is stored based on their position or shape this is called energy.kinetic potential sound electromagnetic

explanation: