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TLS Online TPP Program

#Question id: 9227

A land developer and several ecologists are discussing how a parcel of private land should be developed with housing while saving 20 hectares as natural habitat. The land developer suggests that the 20 hectares be divided into 20 separate 1-hectare areas, spread out across the area. The ecologists suggest that it would be better to have one intact parcel of 20 hectares on one side of the larger area. What is the significance of these different arrangements of the 20 hectares?

#Unit 9. Diversity of Life Forms
  1. The single intact parcel would have a smaller amount of edge than the 20 separate parcels.

  2. The isolated hectare plots increase the ability of individuals to disperse from one habitat to another.

  3. The separate 1-hectare plots are less vulnerable to edge effects.
  4. The large plot will create more inbreeding in many species.
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TLS Online TPP Program

#Question id: 12050

#Unit 7. System Physiology – Animal

A clinical experiment is conducted in which one group of subjects is given 50 g of glucose intravenously and another group is given 50 g of glucose orally. Which of the following factors can explain why the oral glucose load is cleared from the blood at a faster rate compared to the intravenous glucose load? (CCK, cholecystokinin; GLIP, glucose-dependent insulinotropic peptide; VIP, vasoactive intestinal peptide)
TLS Online TPP Program

#Question id: 12049

#Unit 7. System Physiology – Animal

Which of the following hormones is released by the presence of fat and protein in the small intestine and has a major effect to decrease gastric emptying?
TLS Online TPP Program

#Question id: 12048

#Unit 7. System Physiology – Animal

A 10-year-old boy consumes a cheeseburger, fries, and chocolate shake. The meal stimulates the release of several gastrointestinal hormones. The presence of fat, carbohydrate, or protein in the duodenum stimulates the release of which of the following hormones from the duodenal mucosa?
TLS Online TPP Program

#Question id: 12047

#Unit 7. System Physiology – Animal

Biopsies are taken from the antral and duodenal mucosa of a 65-year-old woman. Which of the following hormones can be found in tissue homogenates from both locations?
TLS Online TPP Program

#Question id: 12046

#Unit 7. System Physiology – Animal

Which of the following ions has the highest concentration in saliva under basal conditions?
TLS Online TPP Program

#Question id: 12045

#Unit 7. System Physiology – Animal

Compared to plasma, saliva has the highest relative concentration of which of the following ions under basal conditions?