Tipo de reproducción que permite sobrevivir a los organismos mejor adaptados a su medioambiente​

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

the correct answer is 2 and 4

the answer to the blank provided is “an autosomal gene that is required for the expression of genes on the x chromosome”.

testis-determining factor, abbreviated as td, which is more popularly known as sex-determining region y or sry protein, is a dna-binding protein or  gene-regulatory protein/transcription factor, encoded by the  sry gene. it is the gene responsible for the initiation of male gender determination in humans.