Compare organisms in the table which of the following explains why the pawpaw belongs in the kingdom plantae but blue-green algae does not?
a) the pawpaw absorbs carbon dioxide and releases oxygen, unlike blue-green algae.
b) the pawpaw contains chlorophyll for photosynthesis, unlike in blue-green algae.
c) the pawpaw is able to produce its own food and energy, unlike blue-green algae.
d) the pawpaw is composed of many cells containing organelles, unlike blue-green algae.

a. decomposes use carbon from dead organisms as fuel for cellular respiration, returning carbon dioxide back into the atmosphere.

sheep is a herbivore animal whereas grasshopper belongs to the class chordates but both of them feed on greens.  

if grasshopper and sheep feeding on a pasture land, i do not think both of them will have any impact on each other. however, the number of the species can make difference. since sheep feed on greens, there is a possibility there left no pasture land for the grasshoppers or they may get extinct.

burning fossil fouls really decrease the carbon in the atmosphere so b