1. Organelles-. e.g. mitochondria, nucleus.
2. Cells- e.g. epithelial cells, palisade cells.
3. Tissues- e.g. muscles, connective tissue.
4. Organs- e.g. heart, liver.
5. Organ systems- e.g. digestive system, circulatory system
This is because there are many organelles inside a cell and a collection of same cells that creates tissues, a collection of tissues form organs, to carry out a particular function, and a collection of organs working together is an organ system. I think this is what they're after as I had a similar question a little while ago.
Probiotics are healthy bacteria which live in the human body, in particular in the intestines, and help fight disease. They are living microorganisms which, when ingested, have beneficial effects on the human body. The most common form of probiotic is Lactobacillus Acidophilus.
It is estimated that there are several trillion friendly bacteria comprising over four hundred species in the average human gastrointestinal tract. By body weight, each of us carries around approximately four pounds of intestinal microflora!
They counteract damage done to the body due to antibiotic use and stimulates the immune system to function better when you are relatively healthy, but when you’re sick, they can also contribute significantly to relief of health problems ranging from indigestion and diarrhea to colon and liver cancer.
Lactobacillus Acidophilus is also involved in the production of B vitamins (niacin, folic acid, and pyridoxine) during the digestive process.
Some of the ways probiotics appear to improve health include: alleviating lactose intolerance, reducing and preventing diarrhea, defending against infections, enhancing the immune system, reducing inflammation, preventing allergic reactions, and reducing chronic constipation
Answer:
C. inhibiting the breakdown of neurotransmitters in the brain
Explanation:
Monoamino oxidase (MAO) facilitates the break down and removal of neurotransmitters like nor-epinephrine, epinephrine, serotonin in brain which have excitatory effects on neurons. When these neurotransmitters are degraded by MAO, this would lead to decreased excitatory level of neurons and it will become less functionable as seen in most of the patients suffering from depression, panic disorders, social disphobia and some neurodegenerative disease.
Monoaminooxidase Inhibitors prevents the degradation of above mentioned neurotransmitters which leads to increasing their levels and concentration which allows them to work and influence on neurons effected by depression.
A stem<span> is one of two main </span>structural<span> axes of a vascular plant, the other being the root. The </span>stem<span> is normally divided into nodes and internodes: The nodes hold one or more leaves, as well as buds which can grow into branches (with leaves, conifer cones, or inflorescences (flowers)).</span>
