Certain fossils, called index fossils, help geologists match rock layers. To be useful as an index fossil, a fossil must be widely distributed and represent a type of organism that existed for a brief time period. Index fossils are useful because they tell the relative ages of the rock layers in which they occur.
I think the answer is 10 calories
They are spindle shaped and have no striations.
In Freud’s model of
the mind, it is the id that contains a pool of primal psychic energy. It is the
id that paves way into how we deal with the everyday pleasures of our lives. The
id is governed by the pleasure principle were it is highly motivated for doing
pleasurable things like hunger, sex, thirst, and many more. It is considered to
house primal psychic energy because it is primarily consisted of all the inherited
biological aspects that are necessary in our lives. Since it contains the
pleasure principle, it is responsible for our impulses as well.
