Most of the exchange surfaces of multicellular animals are lined with epithelial tissue.
Epithelial tissue is one of the four major body tissues found in organs, lining the internal and external surfaces of the body.
It has different structures and functions depending on where it is located on the body.
The epithelium is a type of body tissue that covers all the internal and external surfaces of the body, lines body cavities and hollow organs.
Epithelial tissue has various functions, such as protection, secretion, and absorption, depending on where it is located in the body. The body organs are made up of four basic types of tissue, including:
- Epithelial tissue
- Connective tissue
- Muscular tissue
- Nervous tissue
All substances entering or leaving an organ must first pass through the epithelium.
There are various types of epithelial tissue throughout the body. Some examples of epithelial tissues are:
- The outer layer of skin (epidermis).
- Intestinal mucosa.
- Airway lining.
- Inner wall of abdominal cavity.
- Sweat glands
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Ethylene
Ethylene is a hydrocarbon chemical emitted from most
fruits that promotes ripening. When fruits are bunched together this
creates more ethylene and thus ripens each fruit faster. The more fruits
are bunched together, the more ethylene is produced and the faster all
the fruits ripen - this is why sometimes the fruits at the bottom of a
carton are much riper than at the top, because they are soaked in
ethylene.
Answer:
FALSE
Explanation:
In the periodic table, vertical columns are called GROUPS.
This is a FALSE statement
The horizontal rows on the periodic table are called periods.
