In each trial, you will add an indicator to the mystery food sample. but you will also add the indicator to a known substance and water. why is that important? check all reasons. to practice measuring volume using the graduated pipette correctly to match the mystery food sample to a definite positive result (gelatin, oil, etc.)to match the mystery food sample to a definite negative result (water)to increase the amount of data. b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are ! b and c are !

Food webs - transferring energy and matter from one level to another. here you see four food webs. one or more are incorrect. which food web(s) show the correct sequence of organisms, from start to top level consumer? a) a b) d c) c d) a and d

What is usually (but not always) related to the metabolic processes of living organisms in its organic form?

Imagine a person stepping on a pin and pulling his or her foot away. look at the reflex arc of this scenario below. which statement best describes the image? a)the sensory nerve carries the signal from the effector to the interneuron, and the motor neuron carries the signal to the receptor. b)the motor nerve carries the signal from the receptor to the interneuron, and the sensory neuron carries the signal to the effector. c)the sensory nerve carries the signal from the receptor to the interneuron, and the motor neuron carries the signal to the effector. d)the sensory nerve carries the signal from the receptor to the motor neuron, and the interneuron carries the signal to the effector.