What is the function of the structure labeled Y?

A. to keep oxygen-rich blood and oxygen-poor blood flowing

B. to filter waste materials from oxygen-poor blood

C. to filter waste materials from oxygen-rich blood

D. to keep oxygen-rich blood and oxygen-poor blood
separate

The bacteria found in soil is usually harmful and measures are taken to remove any traces of microorganisms. true or false

The concept of keystone species is controversial among ecologists because most organisms are highly interdependent. if each of the trophic levels is dependant on all others how can we say one is most important

Taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? view available hint(s)taq polymerase is an enzyme isolated from the organism thermophilus aquaticus. this organism has been found living in the hot springs of yellowstone national park. this enzyme is used to copy human dna from crime scenes. most reactions are performed at ranges similar to those of the human body; however, what considerations should be made for optimum use of this enzyme? the enzyme will not work on human dna.nothing should be altered.the ph should be decreased.the temperature should be raised.