Of the elements Oxygen (O), Zinc (Zc), Copper (Cu), and lodine (1), which one would you predict to be a poor conductor of electricity and a brittle solid at room temperature?

iodine would be a solid brittle and poor conductor of electricity.

if your own plato the answer is b. the fern transitioned from sporophyte generation to gametophyte generation.

the level of progesterone is low at the pre-ovulatory phase of the cycle but it gradually increases and the levels are high at the luteal phase. if pregnancy occurs, the level of progesterone will be high throughout the pregnancy.

if egg is fertilized and the mother gets pregnant, progesterone starts preparing the uterus for the implantation. it starts building up the lining of uterus and make it hostile of the period of pregnancy.