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.
A dromedary is an animal that can travel for many days without drinking water. You would expect to find the dromedary in a <em><u>(C) : Desert</u></em> Biome.