Answer:
Before the antibiotic, the ‘good’ bacteria had colonized her intestines and formed colonies that made up her biome. These colonies out-compete other bacteria, including ‘bad’ bacteria that tried to grow in the intestines hence protecting her intestines from infection.
However, the antibiotics wiped out the established colonies of ‘good’ bacteria –destroying her biome- and gave room for recolonization of the intestines by bacteria. The secondary succession gave a chance for the ‘bad’ bacteria to also thrive and cause her massive infections.
Hm maybe put the definition of each choice? AHH sorry
It decomposes it and returns the nutrients to the ground.
Of interest, climate is one of the five soil forming factors and has a significant influence on the properties of soil. Soils in warmer or wetter climate are more developed than soils in cooler or drier climate. Warm conditions promote the chemical and biological reactions that develop parent material into soil.