Three samples of DNA contain the percentages of nitrogenous bases listed in Table 12-2. According to Chargaff's law, which two samples probably belong to the same species? A. cannot tell without data on guanine and thymine
B. 1 and 2
C. 1 and 3
D. 2 and 3

the reason the two sea urchins don't compete with each other for food, resources, etc. is because the urchins have adapted to the environment but they have also adapted to each other. this is most likely because the genes of the sea urchins.

from the original order (top to bottom) the new order will go

1 (founder)

4 (hawk)

2 (mutate)

3 (next generation)

an organism's phenotype is the  form of a trait  that it  displays. for  flowercolor, a pea  plant  can  display  a phenotype of purple or white flowers. an organism's  genotype  is the alleles of a gene it contains. based on his data, mendel concluded that a phenotype can be  determined  by more than one  genotype.

the actual answer was 160934