(Q).
Q: What do you call reversible changes that do not change matter's chemical makeup or chemical properties? Read this paragraph and choose the correct option from the provided answers: A change of state occurs whenever matter changes from one state to another. Changes of state are physical changes in matter. They are reversible changes that do not change matter's chemical makeup or chemical properties. Choices: - potential changes - element changes - chemical changes - physical changes A:
(A).
physical changes

(Q).
Q: How many possible alleles do the majority of human genes have? Read this paragraph and choose the correct option from the provided answers: The majority of human genes have two or more possible alleles. Differences in alleles account for the considerable genetic variation among people. In fact, most human genetic variation is the result of differences in individual DNA bases within alleles. Choices: - three or more - two or less - less than four - two or more A:
(A).
two or more

(Q).
Q: What component of cells is present in plant and bacterial cells but not animal cells? Read this paragraph and choose the correct option from the provided answers: Animal Cell. The shape of an animal cell is not constrained by a rigid cell wall. A bacterial cell is shown above for comparison. Choices: - nucleus - plasma - mitochondria - cell wall A:
(A).
cell wall