A) positive ion and a negative ion
Answer and Explanation:

<em>Q.Which of these instruments is listed with the wrong type of lens that it uses?</em>
<em>→ A.telescope, convex
</em>
<em>→ B.camera, convex
</em>
<em>→ C.flashlight, concave
</em>
<em>→ D.microscope, concave</em>
<em />
<em>→ </em>
<em />
<em />
<em />
<em> </em>
<em />
<em />
<em>Hope this helped you!</em>
DNA: TTC. AAT. GGT. CTA. GGG
Com RNA: AAC UUA CCA GAU CCC
Amino Acid: (ASN) (LEU) (PRO) (ASP) (PRO)
I think the answer is all of the above......
dietitians -> need to learn about human body-> biology
zoologists-> need to learn about animals-> biology
so, since two answers are correct the answer is all of the above