The graph of a quadratic function touches, but does not cross the x-axis at x = 4 Which function represents this
Situation?
Py=x2-16
y=x2 - 4x
y 2 -8x + 16
y=x2 + 8x + 16

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Why reason best illustrates why hershey and chase chose to use viruses in their experiment?

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