Which best describes how enzymes function in the body?
a.)enzymes are converted into products by the reactions they catalyze
b.)enzymes lower the activation energy of reactions
c.)on enzyme can catalyze many different reactions
d.)an enzymes is used once then destroyed by the cell

Four different thermometers were used to measure the temperature of a sample of pure boiling water. the measurements are recorded in the table below. thermometer temperature reading 1 temperature reading 2 temperature reading 3 w 100.1°c 99.9°c 96.9°c x 100.4°c 102.3°c 101.4°c y 90.0°c 95.2°c 98.6°c z 90.8°c 90.6°c 90.7°c the actual boiling point of pure water is 100.0°c. what can be concluded from the data about the reliability and validity of the thermometers?

The first amino acid of a new polypeptide chain is

The “ecological footprint” left by a citizen of a developed nation is about four times larger than that left by a citizen of a developing nation. why is this the case?