Consider the recent phylogenetic tree of five different organisms. A phylogenetic tree is shown. The root of the tree is birds. The branches are crocodiles, bats, and insects.

Old classification systems based on physical characteristics would most likely disagree with the relationship between which two animals in the tree?
crocodiles and insects
bats and humans
birds and bats
humans and crocodiles

from my research i have to the conclusion that decomposers, such as fungi, bacteria and invertebrates, play a critical role in nutrient cycling and without them the earth's ecosystem may not support life as we know it. elements such as carbon, nitrogen and phosphorus exist in limited amounts on earth, although huge amounts of carbon are being released into the atmosphere from underground sources now by humans. it is still extremely important that other nutrients be retained by the process of re-use. decomposers are organisms that are able to chemically break down dead material and make these elements available for use by other organisms. without this breakdown of dead material, dead bodies would pile up. so decomposers also play a role in clean up also. without them, life might not continue as we know it and dead material would overwhelm the earth.    

the offspring would all be white. if the parents are both white flowers then they have the genotype rr, which when crossed results in an all white punnet square.

condensation. good luck!