1. Scientists are reluctant to say that any theory is absolutely true. Why do you
think that is?

One group of reptiles, characterized by the fossil ark metal x

Why were the results whit just water so much different than the trials with the detergent ?

Which of the following statements is true regarding a basic amino acid? a.) the hydrophilic r group of a basic amino acid will be located on the interior of a protein b.) the positively charged r group of a basic amino acid could bind dna c.) the r group of a basic amino acid would only be able to form covalent bonds with other molecules d.) a basic amino acid would be considered both polar and hydrophobic e.) all of the above