Amoeba eats allege, bacteria, plant cells, and microscopic protozoa and metazoa Hope this helps :)
Answer:
Pepsinogen is a powerful and abundant protein digestive enzyme secreted by the gastric chief cells as a proenzyme and then converted by gastric acid in the gastric lumen to the active enzyme pepsin.
Explanation:
The role of pepsin and its precursor in protein digestion was first described in the 19th century.
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Liver cells because it uses the most energy than the other choices
Surface waves cause most the the damage