What are the differences between animal and plant cell?

Plants have eukaryotic cells with large central vacuoles, while animal cells have a nucleus and other membrane-bound organelles.

Explanation:

Animal cells don't have cell wall. That makes the animals have an ability to be flexible. Plant cells have a cell wall to keep other things out of the plants.

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.