Which statement about vacuoles is true? only plant cells contain vacuoles. only animal cells contain vacuoles. vacuoles are larger in plant cells than in animal cells. vacuoles are larger in animal cells than in plant cells.

think the correct  answer from the choices listed above is option C. Vacuoles are larger in plant cells than in animal cells. In animal cells, one or more small vacuoles can be present while for plant cells one large central vacuole is present which takes up to 90% of the volume of the cell.

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.

i think the answer is b.