What happens to the activity of an enzyme as the sample is boiled at 100 C

Which of the following will not cause mass extinction? a. drastic change is weather b. geological change c. both a and b d. none of the above

During an investigation of an xss attack, the investigator comes across the term "[a-za-z0-9\%]+" in analyzed evidence details. what is the expression used for?

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?