A trilobite fossils has been used to tell us how life on earth has changed. Trilobite fossils are examples of? A:mold and cast fossil
B:index fossil
C:trace fossil
D:petrified fossils

B:index fossil

Explanation:

The trilobite fossils are examples of index fossils.

Index fossils are most desirable for stratigraphic construction and to predict ancient life forms on earth.

Trilobite is one of such fossils that have the above listed properties.

what following? you said which of the following. but there is no be more specific.

starchy vegetables are high in carbohydrates.

starchy vegetables contain more carbohydrates than non-starchy vegetables.

explanation:

there are two primary categories of carbohydrates, essentially differentiated on the basis of their carbohydrate content (which is in the form of starch - a complex carbohydrate):

those vegetables which contain little amounts of starch are termed as non-starchy vegetables, and some examples include: artichokes, broccoli and bean sprouts.

vegetables high in their starch content are distinguished as starchy vegetables, and some examples include: potatoes, chickpeas and corn.