Which scientific investigation does NOT include dependent and independent variables? Group of answer choices:

Investigating the effect of mass on the speed at which an object falls

Testing a model car in a wind tunnel to minimize air flow resistance and maximize fuel economy

Observing and counting birds

Studying the effect of temperature on bacterial reproduction rates

[ answer ]

foliated

[ explanation ]

foliation forms in a rock when pressure squeezes the rock together. the rock then has a design of many different color little lines. there are three types of foliated rock. the types are slate, schist, and gneiss. each type of foliated rock is different based on grain size and foliation characteristics. the lines appear when the rock has been under pressure.

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as in mitosis, dna replication occurs during interphase.   in meiosis, it occurs specifically in s phase of interphase 1.