The local aquarium wants your help explaining to the public the importance of
sea otters in kelp forest ecosystems. Use illustra-
tions and words to make a sign that could be
placed in front of the sea otter exhibit. Explain
the concept of “keystone species” and describe
the role sea otters play in nature.

use smarts app it gives all theanswers

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.

answer; ///the above statement is (true);