two descriptions about physical quantities are given below: quantity a: it is unaffected by the location of an object in space. quantity b: it can be measured in kilograms. what quantities are these most likely describing? a.  both quantity a and quantity b are mass. b. both quantity a and quantity b are weight. c. quantity a is weight and quantity b is mass. d. quantity a is mass and quantity b is weight.

Option A, Both Quantity A and Quantity B are mass

Explanation:

Mass is the total amount of matter contained in an object or substance and it remains the same irrespective of any external factor such as gravity.

This means that an elephant which has a mass of 100 kg on earth has a mass of 100 kg on moon or any other planet.

Since mass can be measured in kilogram, option A is the most suitable answer.

regulation of gene expression. gene expression can be regulated by various cellular processes with the aim to control the amount and nature of the expressed genes. these regulatory proteins bind to dna and send signals that indirectly control the rate of gene expression

explanation:

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