What matter is part of the ecosystem?

Which figures of speech appear in this excerpt from john keats’s “ ode to autumn “?

Identify the main component f natural gas

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment