Pencil lead is dull and brittle. That's why it breaks off when you drage it across paper. Therefore, pencil lead is made out of an element that is a ?
- non-metal
- metal
- metalloids
- metalloid

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

“in 1492 columbus sailed the ocean blue” is an example of: a)explicit memory b) procedural memory c) semantic memory d)episodic memory

During binary fission, what events must occur before the cell splits into two new cells?