How did scientists obtain environmental DNA (DNA) from carp in the waterways near Chicago?

A. They collected water samples and isolated DNA the fish had left
behind.
B. They extracted DNA directly from the wastes of the fish.
C. They collected carp eggs, from which they extracted DNA.
D. They captured carp and extracted DNA directly from the fish.

the answer is b)3/8x+1

meteorologists would compare a new weather map with one 24 h old to see how fast a front is moving.

plant because they survive by water, sunlight, ex.

explanation:

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.