If a portion of the pancreas is surgically removed from a rat and the rat subsequently loses its appetite, one explanation is that the removed portion contains cells that secrete a chemical signal that somehow stimulates appetite. Given this scenario, what type of chemical signaling is occurring?

#Question id: 9225

#SCPH28 | Zoology

Use the following figure to answer the question

In looking at the species-area plot in the figure, what can be concluded?

#Question id: 9226

#SCPH06 I Botany

The main purpose of movement corridors is to ________.

#Question id: 9226

#SCPH28 | Zoology

The main purpose of movement corridors is to ________.

#Question id: 9227

#SCPH06 I Botany

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?

#Question id: 9227

#SCPH28 | Zoology

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?

#Question id: 9228

#SCPH06 I Botany

Use the following figure to answer the question

Looking at the figure showing the results of forest fragmentation, what can be said about edge effects?