The enzyme catalase is found in liver. based on your observations in #6 and #7 is the enzyme used up in the reaction or can it be reused again and again? support your statement with evidence (observations)

Could someone me with number one you

Which ideas did your answer contain? check all that apply. no food for organisms no oxygen in the atmosphere no trees or flowering plants no products based on trees or plants (building materials, medicines, fuels, fibers) no fossil fuels

If you relate the doppler effect on sound to the color of light waves, a police car would be the color as it approaches and the color as it recedes away from the observer.