Answer: carbon dioxide and water.
Explanation:
aerobic respiration makes two waste products:carbon dioxide and water.
The first living things on Earth, single-celled micro-organisms or microbes lacking a cell nucleus or cell membrane known as prokaryotes, seem to have first appeared on Earth almost four billion years ago, just a few hundred million years after the formation of the Earth itself.
B. they are both unicellular
the insertion on removal of mutations are dangerous in nature. the process is basically just one large gamble to see what it does. and even though we have a decent understanding of the genomes of many animals and plants, we still dont know everything. so if we tamper with certain genes we may cause a evolution or we might kill the subject and the potential for it to procreate.
