It is a vestigial Structure.
Explanation:
What are the answer choices?
Even if a microorganism is a part of the normal microbiota of a human being, it may cause the death of the person. For example, say E. coli, it resides in intestines and is harmful. But, if its number increases way too large, it may cause infection (Colitis) and even death. So, even the normal microflora needs to be present in the controlled quantities, inside the body.
Answer:
<u>Peroxisome</u> is not the part of endomembrane system
(<u>Mitochondria</u> and <u>Chloroplasts</u> are also not included in the endomembrane system)
Explanation:.
The endomembrane system is composed of the different membranes which are suspended in the cytoplasm within a eukaryotic cell. They include :
1) Nuclear membrane
2) Endoplasmic reticulum
3)Golgi apparatus
4) Lysosomes
5) Vesicles
6) Endosomes
These membranes divide the cell into functional and structural components.
<u>Peroxisomes</u> are also covered with membranes but they are not considered as the part of endomembrane system as <u>they don't recieve vesicles from Golgi apparatus.</u>
Similarly the membranes of mitochondira and the chloroplasts also are not included in the endomembrane system because their functions are not coordinated with the organelles involved in the endomembrane system.