blood brain musscle
Epithelial cells form protective barriers in the body, lining organs, cavities, and surfaces. They help to regulate the exchange of molecules and ions between different tissues, and act as a barrier against pathogens and harmful substances. Epithelial cells also play a role in absorption, secretion, and sensation.
The three main characteristics used to classify living organisms are structure (morphology), genetic makeup (DNA sequencing), and evolutionary history (phylogeny). These characteristics help scientists categorize and identify different species within the biological classification system.
size, shape, and relationship to the surrounding rock layers
Red blood cells is because it has no nucleus
Epithelial cells that cover the body are primarily classified into three types: squamous, cuboidal, and columnar. These cells form protective layers on the skin's surface (epidermis) and line various body cavities and organs, such as the respiratory and gastrointestinal tracts. They play crucial roles in protection, absorption, secretion, and sensation. Additionally, epithelial tissue is characterized by its polarity, cellularity, and attachment to the underlying basement membrane.
Triangles have only three sides; all quadrilaterals, including parallelograms, have four.
Flatworms require muscle cells for movement, nerve cells for detecting stimuli, and epithelial cells for sensory integration and coordination of responses. These three cell types work together to allow flatworms to respond to their environment and move about.
The respiratory is made of different cells. Some of them are connective tissue such as cartilage, others are epithelial, like the lining inside, and others are musclular like the ones that help expand and contract to tubes.
The five characteristics used to describe stars are: luminosity (brightness), temperature, size (radius), mass, and composition (chemical elements present).
there are simple and complex epithelial!they are:Cuboidal EpitheliumColumnar EpitheliumCiliated Columnar EpitheliumGlandular EpitheliumStratified EpitheliumSquamous epithelium
There are four categories: Squamous â?? Cells are flat. Cuboidal â?? Cells are boxlike, with same height as width. Columnar â?? The cells are taller than wide. Transitional epithelium â?? Cells can vary from full/balloon-like to flattened, according to the distention of the organ they line. The three classifications by cell layers are: Simple - one cell thickness; Stratified - by appearance of uppermost cells; Pseudostratified - columnar structure that appears stratified, but isn't, due to the crowding of adjacent cells.
By looking at the water to find the classify