Julia Stands on a Pair of Scales Three Times in Succession.The

question 2

Multiple Choice

Julia stands on a pair of scales three times in succession.The first time she weighs 69 kilo,the second time 69 kilo,and the third time 69 kilo.Her real weight is 51 kilo.What is the matter with the scales?

• A)The pair of scales is not reliable and not valid.
• B)The pair of scales is reliable but is not valid.
• C)The pair of scales is not reliable but is valid.
• D)The pair of scales is reliable and valid.

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Definitions:

Golgi Body

Membrane-enclosed organelle that modifies proteins and lipids, then sorts the finished products into vesicles. Shaped like a stack of pancakes.

Photosynthesis

A process used by plants and other organisms to convert light energy, usually from the sun, into chemical energy that can be later released to fuel the organism's activities.

Protist Cells

Eukaryotic organisms that are neither plants, animals, nor fungi, often unicellular, such as amoebas, algae, and protozoa.

Chloroplasts

Organelles found in plant cells and eukaryotic algae that conduct photosynthesis, capturing energy from sunlight and converting it and carbon dioxide into oxygen and energy-rich organic compounds.