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Verified by Psychology Today. How to Parent a Teen. In the teen social world, sex is more visible, more acceptable, and more available, given the opportunities afforded teens in their social contexts.
What is the first step in the clinical decision making process with teens? What if the assessment indicates the teen does not have problematic sexual behavior? What are some diagnostic considerations related to problematic sexual behavior?
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Sexual selection in amphibians involves sexual selection processes in amphibiansincluding frogssalamanders and newts. Prolonged breeders, the majority of frog species, have breeding seasons at regular intervals where male-male competition occurs with males arriving at the waters edge first in large number and producing a wide range of vocalizations, with variations in depth of calls the speed of calls  and other complex behaviours to attract mates. The fittest males will have the deepest croaks and the best territories, with females known to make their mate choices at least partly based on the males depth of croaking.
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Testosterone is assumed to be the key hormone related to resource-defence aggression. While this role has been confirmed mostly in the context of reproduction in male vertebrates, the effect of testosterone on the expression of resource-defence aggression in female vertebrates is not so well established. Furthermore, laboratory work suggests that progesterone inhibits aggressive behaviour in females.