because it does not need to widthstand the large amount of blood presssures
No, the arterioles are very small vessels and lack this thick layer. Instead they consist only of an endothelial layer wrapped by a few smooth muscle fibres.
Some membranes that lack an epithelial layer include synovial membranes, meninges, and the endothelium that lines blood vessels. These membranes are made up of connective tissue rather than epithelial cells.
aplasia
The subcutaneous tissue is the where the adipose tissue resides and offers insulation. Lack of this insulation will cause sensitivity to cold environmental temperatures.
They are exclusively marine animals.Body cavity is absent.They have a tissue level of organization and lack organs and organ systems.Their body is made up of two layers of cells; the outer layer is called ectodermand the inner layer is called endoderm.They are also invertebrates.
No. They are not, Algae lack tissue differentation, which means they have no veins ( or vascular tissue.)
infarct
An area of tissue that becomes necrotic due to a lack of oxygen is called an infarct. This typically occurs when the blood supply to a specific area is blocked, leading to tissue death.
Cell walls
blood vessels, lymphatic vessels, and connective tissue
tru tissue
Plant tissue contains cell walls while animal tissue contains cell membranes. Plant tissue have chloroplast organelles that are used for photosynthesis, while animal tissue lack these photosynthetic organelles.