Although a pulmonary circuit exists, the heart in amphibians and most reptiles is made up of only three chambers:.
Two atria and one ventricle.
The latter receives blood from both atria. Speculate about possible disadvantages of this circulatory pathway.

volcanoes (an event in the geosphere) release a large amount of particulate matter into the atmosphere. these particles serve as nuclei for the formation of water droplets (hydrosphere). rainfall (hydrosphere) often increases following an eruption, stimulating plant growth (biosphere).

find out why you don't need to aim at such a syllable pattern in english. you may have thought that haiku was supposed to be 5-7-5, so what's up with the logo by the gravitational pull of celestial objects, can touch us in unexpected ways.