Fleurette is conducting a comparative investigation where she is comparing the average acceleration of two different types of cars. she collects data and comes up with a conclusion. what is a major limitation of her experiment?

large amounts of information can be gathered.
the investigation is not repeatable.
she cannot explain what causes the difference.
there is an independent variable and a dependent variable.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."

the titanic would be the correct answer