Food, water, shelter, air, sunlight
Convection : Warm air rises and cold air sinks, you have a cycle there :D
You can experience it on the beach shore. Since water has a high heat capacity ( it takes longer to heat up ) and the sand get hot quickly, the air on the shore gets warm and rises. When the air reaches to certain elevation (or meet the temperature of the beach), it gets cooler and sinks, cold air from the beach blown to the shore.
Vertebrates or invertebrates reason being that invertebrates such as an arthropod, mollusk, annelid, coelenterate, etc. <span>comprising 95 percent of animal species and about 30 different phyla Crazy right? Vertebrates like us and other creatures make up the rest which have a backbone unlike invertebrates..</span><span />
