Out of the following given choices;
A. theory that fish and mammals have a common ancestry
B. theory that the first organisms on Earth were heterotrophs
C. close relationship between fish and mammalian reproductive patterns
D. close relationship between humans and annelids
The answer is A. Many embryos of the kingdom Animalia share similarities in the early stages depicting that they share a common ancestor. The gill slits is one example. They diverge in later stages to become Pharyngeal in the human embryo, while they differentiate into gills in fish.
The natural selection process applies majorly inside back species wether than between species.
It is between A and B.
But if the species is going to be extinct, that means that they are being threatened.
So the answer is B.
Matthew was suffering an anxiety attack, this is proven with his feelings of being "overwhelmed.. feelings of intense apprehension". He was experiencing shortness of breath due to how he was feeling.
