A scientist isolated a molecule with nucleotide bases A, C, G, and U and ribose sugars. What is it? a. rna
b. an amino acid
c. glucose
d. dna
e. a fatty acid​

Ascientist discovers a new body between the orbit of neptune and the kuiper belt. the object is round and travels in an orbit around neptune with other space objects. the scientist claims that she has found a new dwarf planet. where is the scientist’s error?

Which of the following does not describe a physical property of iron? a iron is silvery-white or gray in color. b iron has a boiling point of about 3,000°c. c iron is a magnetic element . d iron and sulfur react to form iron sulfide.

Gram-negative bacteria have a cell wall that is! and does not accept the stain, making itappear