Explain the purpose of the iucn red list

Hi!

IUCN Red List of Threatened Species, or The International Union for Conservation of Nature’s Red List of Threatened Species, is a the world's most comprehensive catalog, containing information regarding to animal, plant and fungi species with regard to the their conservation status.

The purpose of this list was to highlight the situation of global diversity through critical assessment of species, thereby eliciting appropriate action through policy changes to protect and conserve species that contribute to the world's biodiversity.

Hope this helps!

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.

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation: