Question 3
which era is known as the age of reptiles?
cenozoic
mesozoic
paleozoic
precambrian

Describe the structure of amino acid, including what makes amino acids different from eachother

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

What happens to the amount of waste in the pond as the ecosystem ages?