The first letter of an animal's genus is always capitalized, e.g., Panthera leo.
(This is the binomial nomenclature of a lion, whose genus is named after panthers)
Mitochondria is the powerhouse of a cell
The greenhouse effect is the trapping of a stars warmth in the lower atmosphere of a planet by gasses in the air trapping the energy. This is similar to what actual greenhouses do, where they trap the warmth and humidity of the air inside it so plants can flourish. Farm animals produce a huge amount of the greenhouse gasses required for our planet to trap the suns warmth.
Twenty two thousand so the answer is c
