What element is found in nucleic acids but not in proteins? •carbon •hydrogen •nitrogen •phosphorus hurry!

Weights of golden retriever dogs are normally distributed. samples of weights of golden retriever dogs, each of size nequals15, are randomly collected and the sample means are found. is it correct to conclude that the sample means cannot be treated as being from a normal distribution because the sample size is too small? explain.

How can an organ, such as the lungs, work for multiple body systems?

Which number represents a basic ph, 4 or 9? numerical answers expected! answer for blank 1: i'll give