What are the two significant structures found on a tRNA molecule? (select all that apply) 1 codon
2 anticodon
3 ribosomes
4 amino acid

The image below shows a common blood pressure gauge. what does this device do? a. measures the level of oxygen present in the blood b. measures the pressure of blood when the lungs expand and compress c. measures the electrical activity of the heart d. measures the pressure of blood when the heart contracts and relaxes

Human genes only differ by less than percent. a. 1 b. 6 c. 11 d. 16

Ascientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas which group of statements best describes all of the materials he is using in the investigation?