According to the Hardy-Weinberg principle, the frequencies of alleles remain constant in a population, but only under certain conditions. Which of these events or conditions is most likely to maintain Hardy-Weinberg equilibrium? A. A natural disaster reduces the population to about 20 percent of its previous size.
B. Immigration from a neighboring ecosystem increases the population by 50 percent.
C. The alleles have no effect on which males and females mate and produce offspring.
D. The arrival of a new predator makes one of the alleles more advantageous than the other allele.

thermophiles, notice the prefix thermo.

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 thinking chemical change

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