Sally was analyzing samples of dna. she had dna samples from bacteria, a whale shark, a bald eagle, and a human. just by looking at the structure and components of the dna, what could sally conclude? a) the eagle and shark would have very similar dna b) the dna of the human would have a more complex physical structure than the rest c) only the dna of the bacteria would be coiled into a double helix, so she could identify it d) all dna is made of the same components so she would see no difference between the samples

Option D is correct.

D) all DNA is made of the same components so she would see no difference between the samples

DNA is hereditary material and it is made up of the same components in all organisms from bacteria to a whale shark so by just looking at that Sally cannot differentiate between the DNA of different organisms.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.

i believe it is c: genes for body color and wing size are inherited separately from each parent.