In the following scenario which option identifies the type of variable represented by age A researcher wants to study the relationship between age and resting heart rate she selects subjects and record their age and heart rate
A. attribute variable
B dependent variable
C operational variable
D confounding variable

hi, natural selection of the peppered moth during the industrial revolution in 19th-century england is an example of an outlier in the study of evolution. during this time, pollution from factories filled the forests, coating trees in a layer of soot—turning white trees black

mark as brainlest

gokuson

the dark variety, as they are not visible on the dark tree barks

explanation:

answer: pee on jews

explanation: