FEEDBACK: A monkey feasts on some sugary fruit. As soon as thefirst bite of fruit hits its stomach, but before any glucose fromthe ingested food enters the monkey's blood, its blood glucoselevel drops slightly. As the monkey's meal is digested and glucoseis absorbed in the blood, glucose levels are slightly elevated.They then decrease back to the starting value after absorption hasbeen completed. Which type(s) of regulation are most likely to beinvolved in regulating blood glucose concentrations?
A lion kills a zebra and is going to feast on its iron-richmeat. As soon as the first bite of food hits the lion’s stomach,the lion’s blood iron concentration drops. It then increases for awhile as digestion and nutrient absorption begin, and thendecreases back to the value seen before the start of themeal.Ă‚Â Ă‚Â
Group of answer choices
Negative feedback and feedforward regulation
Positive feedback and feedforward regulation
All three types of regulation
Negative feedback and positive feedback
Negative feedback only
