When a tree is cut and burned, it is converted into which of the following? carbon reservoir
carbon cycle
carbon source
carbon sink

Carbon Source

Explanation:

When trees are burnt, they release all the carbon inside them. Therefore, making it a source.

i think the answer is b.

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.