Una galleta con chispas de chocolate y un helado con fresas, son ejemplos de: A. Sustancia
B. Compuesto
C. Mezcla homogénea
D. Mezcla heterogénea

During an experiment, readings for blood pressure in a persons body were found to be constant . however , when he measured by a different blood pressure cuff , the readings differed by 15 points for each reading. this difference indicates that the results are

What is the difference between a scientific hypotheses and a scientific theory?

Aragonite shells of clams, snails, or scleractinian corals may be preserved unaltered in cenozoic deposits, but they are generally dissolved or recrystallized in older deposits. true or false