All of the following are true of chief cells EXCEPT they are part of the gastric glands
they are present in the stomach mucosa
they secrete HCI
they secrete pepsin (in its inactive form, pepsinogen)

When organisms convert from of energy, what usually results

Explain how ancient whale fossils found in eqypt are believed to support the theory of evolution.

Which of the following is not a symptom of desertification? a) decrease in salt content of the soil b) lowering of the water table c) reduced surface water d) increased soil erosion e) loss of native vegetation