Long, streamlined bodies reduce friction and allow access to small spaces. This body type is found among amphisbaenians, nematodes, and caecilians. Body shape in each of these organisms would be considered a(n):

homologous character

parsimonious character

phylogenetic character

analogous character

The analogous characters

Explanation:

In the given question, the body of the organism belonging to different phylum of animal kingdom shows the same structure and function although they are unrelated.

The streamlined body of the nematodes, the amphibians and the reptiles are similar in appearance and performs the same function. This trait has been the result of the natural selection as the same natural force has been applied to these three organisms which have resulted in acquiring the same type of adaptations in response to the same habitat.

The evolutionary biologists consider such organs as the analogous organs which are evolved through the convergent evolution.

Thus, the  analogous character is the correct answer.

"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."