Help me with these questions! WRONG QUESTIONS WILL BE DELETED

Aseries of connections of food chain in an ecosystem is called a what

You see a white marker with an orange circle and black lettering. what does this marker tell you

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