What hierarchical level is above the organ level

Distilled water is devoid of any solutes. It contains no additional gases, minerals, or contaminants. Would it be right to give a person an IV (intravenous) therapy of distilled water?

What is the purpose of an indicator? to cause a change in pH to identify acids only in a solution to identify bases only in a solution to identify the pH of a solution

1. Cells reproduce by splitting in half, a process called cell division. What do cells need to do between divisions to make sure that they don't just get smaller and smaller?

Regeneration in man is limited to ... A) reproduction B) fertilization C) experimentation D) healing of wounds

Based on figure 21-1 animals are most closely related to

Diabetics can now obtain insulin that has been manufactured by what biological advancement? HGP, hybridization, gene splicing or cloning

A client who underwent thoracic surgery to remove a lung tumor had a chest tube placed anteriorly. the surgical team places this catheter to:

Prior to the ideas presented by Charles Darwin concerning evolution, several alternating theories had been developed. They included all BUT A) all species on Earth were created at the same time and have never changed.

Witch is a nonmetallic mineral resource? A. Wood B. Iron C. Aggregate D. Coal

How does digestion and absorption of food take place in cnidarians?