The chart lists four different kinds of atoms. A chart titled Different Kinds of Atoms with the entries calcium, gold, argon, iodine. What is true about all of these atoms? They cannot be solids. They are the largest units of matter. They are the only types of atoms that exist. They cannot be divided.

Which image shows labeled organelles that are present only in plant cells?

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england

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