Which of the choices below is the salt level-monitoring part of the nephron?

a. loop of henle

b. principal cell

c. macula densa

d. vasa recta

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

Residential construction is expanding in florida, the expansion has caused fragmentation of habitats, one of the results of the increased construction is a decrease in the number of large predators such as the coyote, black bear and pool panther, which will be the most immediate local result of this fragmentation? 1)large predators will become extinct 2)decrease in middle sized predators 3)increase in population of top carnivores 4)increase in population of prey species

What are the subsystem of the earth