fossils because these rocks are formed on the Earth surface, under the water, at very low temperatures and pressures.
Yaa that statement is true, complex chemical catalyst of living cells are enzymes
The information that may be shown in an ecological pyramid is the relative amount of energy.
A food pyramid is wider at the bottom, at lower trophic levels, showing that there is a higher amount of energy available to the producers, and this energy reduces as we move up the trophic levels of the ecosystem.
Answer:
a) mucosa, submucosa, hyaline cartilage, adventitia
Explanation:
The wall of the trachea can be divided into four layers from the deep region to the superfacial region :
These are; mucosa, submucosa, the musculocartilaginous layer (hyaline cartilage), and the adventitia.
<u>The adventitia</u> is a connective tissue layer that combines with the musculocutaneous layer and with the connective tissue that encircles the trachea. It is composed of loose areolar tissue. This areolar tissue permits a considerable amount of movement of the trachea along its length.
<u>The musculocartilaginous layer</u> consists of the cartilaginous plates, fibroelastic tissue, and the tracheal muscle. The cartilaginous plates number and are composed of hyaline cartilage surrounded by perichondrium.
<u>The submucosa</u> contains many elastic fibers and fat cells and many small seromucous tubular glands, which open into the lumen of the trachea.
<u>The mucosa</u> has numerous low longitudinal folds and is lined with pseudostratified columnar ciliated epithelium, which contains numerous goblet cells and rests on a basement membrane.
I hope that helps!