Which of the following is a direct observation? music may plaint grow.

Which of the following is a direct observation?

A. Music may help plants grow

B. The plant is 22cm on day 23

C. two plants must have died from insects

D. The plants will likely grow 2cm per day

Explanation:

The answer would be B. The plant is 22cm on day 23

A direct observation is something that was observed by one or more of the human senses. This is something that was seen, heard, tasted, touched, and the like.

The plant is 22cm on day 23 is a direct observation because it was something that was seen and measured.

The others are not direct observations, those are hypotheses or predictions because it is not something that was seen. For A and D, it is something that has not happened so it is a prediction. For choice C, it is more of an assumption because the researcher did not witness that insects caused the plant to die.

"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."