15. The apparatus in figure 2:27 can be used to demonstrate the mechanism of breathing in a mammal.
Cork
Baloon
Plunger Syringe barrel
Glass rod
Glass tube
(a) What structure in a mammal is represented by the following?
The rubber balloon?​

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

The is an estimate of the fewest number of organisms a population needs to avoid extinction. this measurement will most if the number of offspring each female in the population produces increases. if the population's this measurement will most likely increase. 1 population density, minimum viable population, carrying capacity 2 decrease, be unaffected, increase 3 death rate increase, dead rate decrease

Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day