to test how fertilizer affects tomato plants, a farmer divided a field of young tomato plants into 10 plots of equal size. the farmer then put fertilizer on half of the plots and no fertilizer on the other half of the plots. what is the experimental group in this experiment?
a. all the weedy plants in the tomato field

b. the tomato plants in all the unfertilized plots

c. the tomato plants in all the fertilized plots

d. all the tomato plants in the field

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Why did rutherford say that bombarding atoms with particles was like "playing with marbles" what

Explain how the political influence of african americans leaders became weaker.