Sexual stimuli in the male results from high levels of in the female           a. progestins   b. estrogen   c. progesterone   d. testosterone  

The right answer is B. estrogen

Female sex hormones drive libido. An American team shows how hormonal fluctuations during the menstrual cycle orchestrate sexual desire. The latter reaches its maximum around ovulation, the perfect time for fertilization.

The results show that estradiol and progesterone have two opposite effects on desire: the first increases it, the other decreases it. Thus, the libido reaches its maximum around the peak of estrogen, that is to say near ovulation ... then the sexual desire decreases when the progesterone levels increase.

water is a polar molecule. a chemical bond is a force of attraction between atoms or ions. bonds form when atoms share or transfer valence electrons. atoms form chemical bonds to achieve a full outer energy level, which is the most stable arrangement of electrons. so, false

explanation:

in h2o molecule, two water molecules are bonded by a hydrogen bond but the bond between two h - o bonds within a water molecule are covalent. the greater the electronegativity difference, the more ionic the bond is. bonds that are partly ionic are called polar covalent bonds. nonpolar covalent bonds, with equal sharing of the bond electrons, arise when the electronegativities of the two atoms are equal.