1 point A scientist notices that a local population of frogs has started to develop
deformities. He designs an experiment to identify the source of the
deformities, using unhatched frog eggs and a variety of environmental
stimuli. Which of the following would be the dependent variable in this
experiment? *
A. the introduction of pesticides to the frog eggs
B. the number of frog eggs used in the study's sample
C. the development of deformities in the hatched frogs
D. the size of the aquariums in which the frog eggs were kept

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

An atom with 7 protons, 6 neutrons, and 7 electrons has an atomic mass of amu. (enter a whole number.) numerical answers expected! answer for blank 1:

What occurs when a cell engulfs large food particals