DNA
Mitochondria
Vacuole
Cytoplasm
Cell membrane
Etc.
Cells are the fundamental unit of life, grouped through a series of organization. As basic histology explains the primal hierarchy between each organized organism has basic unit called cells. Cells when grouped form tissues, when group of tissues are formed together they make organs, some organisms skip from organs to organs systems to form an existing organism as a whole. Describing how is the cells group is the process of multiplication of cell or the so-called cell division, mitosis. This mechanism of each cell produces another cell that binds together and produces again, repeatedly, to be a larger system called now the tissue as explained earlier. How? Through cell division called, mitosis. Excerpt meiosis –cell division specifically in the sex cells.
Answer:
Leo is suffering from a condition known as <u><em>obsessive-compulsive disorder</em></u>.
Explanation:
The obsessive-compulsive disorder refers to an anxiety problem characterized by intrusive, recurrent and persistent thoughts that might produce worry, concern, and repetitive actions or behavior, known as <u>compulsions</u>. These compulsions are directed to reduce the associated <u>anxiety</u> and to avoid that something bad occurs.
A pattern of thoughts and irrational fears -<u>obsessions</u>- that make the patient behave with repetitive actions -<u>compulsions</u>-, characterize this disorder.
These obsessions and compulsions interfere in daily activities and are the cause of anxiety and distress.
This disorder is expressed by different symptoms, such as obsessive cleaning, washing, ordering, accumulating, among others. The exposed example is the case of a verifying person who needs to verify everything to avoid a catastrophe. They need to check that doors are closed, or electro domestics are in their off mode.
I don't know answer to this question, but I can explain what it wants for you to name, if that would helped you.
It says that you have to find 4 doings of bacterias (micro-organisms) in the organ system for digestion.
