Organisms that cause disease are carriers. Such as ticks, fleas, lice.
Kelp --> sea urchins ---> sea otters best represents the feeding relationships in a kelp ecosystem that has not been disturbed
by humans.
A. cycles B. equilibrium C. change D. models E. scientific method
all these would be found in science.
PH meter, which is a device used to measure hydrogen-ion activity in the solution. A PH meter is a voltmeter stuck to a pH electrode and a reference electrode. -maclittleseed
I would guess C, hope that helps!
