What test would be used to determine whether a person has an infection?

Which of your fossils are most likely heterotrophs? which of them are autotrophs? how do you know?

S, tall stems (t) is a dominant trait while short stems (t) is a recessive trait. in a field of 1000 sunflowers, 820 are tall plants and 180 are short. which statement best describes the genotype of the sunflowers in the field?

What is the difference between peptide and protein