Which of the following macromolecules is a prominent part of animal tissue that functions in insulation, helping animals conserve heat and warmth?

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

answer >   yes we do, women; have three holes, urethral opening(pee hole, vagina, and the women pee/girls pee out of the urethra like the men do; only they have a single opening to pee/ejaculate.   (sorry if i'm too forward with this, but this is for a biology class, isn't it? )

hope that !         : )