Raquel was initially excited to make the cheerleading squad. however, her parents noticed that she stopping eating dinner with them, wanted to make most meals, and had a list of good and bad foods. she began portioning the amount of food she ate, weighing food, and would claim to have already eaten. most concerning was the significant weight drop from a healthy 115 pounds to 90 pounds. this case most clearly demonstrates symptoms of:

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.

the answer is "a.) well–developed vascular system."

explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides