The answer is carbohydrate
Secondary succession occurs after the initial succession has been disrupted and some plants and animals still exist. The disruption occurs afer an event like a forrest fire or hurricane destroys the forest.
The answer is Chordates
Most of the chordates have a symmetrical bilateral body which differentiated into head, trunk and tail
The example of chordates are parrot, penguin, horse , squirell, clown fish ( the one in finding nemo), sharks, etc
Generally, temperature increases. as altitude increases ! <span>However, the temperature increases with altitude in some layers. This is called an inversion. Inversions can appear at any altitude in the troposphere.
(NOTE: its Troposphere not Stratosphere)</span>