Which statement best describes a scientific question? a. it must be based on a hypothesis. b. it must be supported by data. c. it must be testable. d. it must be original.

The right option is; C. It must be testable

A scientific question is a question that is asked as part of the scientific method. A scientific question relies on a scientific context of theory and observation and its answers must be testable (confirmed or denied). This means it must be tested by a scientist through experiments or observation. Also, a scientific question should lead to a hypothesis that is confirmable.

this protocol provides a detailed procedure for total protein extraction for western blot analysis from achieved samples following trizol isolation of rna.

"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."