Fever is the most serious symptom of a systemic infection.

True
False

Is a measure of the different types of organisms in a community. question options: tertiary secondary primary none of the above

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.

Which of the following was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above