Árbol que el follaje como las semillas sirven de alimento al ganado. De su corteza se extrae una resina empleada en la elaboración de goma, ayuda :C

correct answer is a. and d.

plato users:

d.  

there was a variety of food available on island x, but there were only large seeds and nuts on island y.

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.