When a scientific experiment is carried out in a controlled setting, all variables are kept the same except for the C. experimental. Experimental variables are the things you are studying in the experiment and it is the only variable you can change.
the answer is fossils I just took the test seismographs is incorrect
C is the correct answer because it is what that determines the gene
Homozygous recessive. To determine if a particular plant is homozygous or heterozygous, you would have to test cross with a "homozygous recessive" to make the check
