Which one is true? Sunlight provides plants with the energy needed to make sugars during photosynthesis.
Sunlight provides plants with the energy for cellular respiration to happen.
Sunlight is a product of photosynthesis that the plant releases.

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.