Is they are random changes I believe they should be mutations
Answer:
Tropical rainforest
Explanation:
Tropical rainforest, luxuriant forest found in wet tropical uplands and lowlands near, members of the Canellaceae are shared between South America and Africa, and two In regions lying between the wet tropics and the deserts, climatic zones
It is the fraction of all chromosomes in the population that carry that allele.
That waste product would be carbon dioxide.