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TLS Online TPP Program

#Question id: 12033

Food being digested in the stomach is in a highly acidic environment. When the food is released from the stomach into the small intestine, why is the environment no longer acidic?

#Unit 7. System Physiology – Animal
  1. Secretin increases the flow of bicarbonate ions from the pancreas into the small intestine to neutralize the stomach acid.
  2. Trypsinogen is activated, thus neutralizing the stomach acid.
  3. Bile salts from the gallbladder neutralize the stomach acid.
  4. When pepsinogen activates pepsin, one result is the neutralization of stomach acid in the stomach.
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TLS Online TPP Program

#Question id: 9183

#Unit 9. Diversity of Life Forms

If you are interested in observing a relatively simple community structure in a clear water lake, you would do well to choose diving into ________.
TLS Online TPP Program

#Question id: 12671

#Unit 6. System Physiology – Plant

When genetic changes in an entire plant population have been fixed over many generations by selective environmental pressure, those changes are referred to as,
TLS Online TPP Program

#Question id: 11758

#Unit 7. System Physiology – Animal

In normal kidneys, which of the following is true of the osmolarity of renal tubular fluid that flows through the early distal tubule in the region of the macula densa?
TLS Online TPP Program

#Question id: 18380

#Unit 12. Applied Biology

A commonly used municipal wastewater treatment to restart activated sludge bioreactors. Which technique is involved in this remediation process?
TLS Online TPP Program

#Question id: 544

#Unit 1. Molecules and their Interaction Relevant to Biology

One of the enzymes involved in glycolysis, aldolase, requires Zn2+ for catalysis. Under conditions of zinc deficiency, when the enzyme may lack zinc, it would be referred to as the: