A scientist is investigating how the amount of available water affects plant growth in a rainforest. Although all of Earths spheres are interconnected, which of Earths sphere does the scientists investigate focus on?

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