A simple epithelium has cells that form a single layer that are attached to the basement membrane. A stratified epithelium, on the other hand, consists of multiple layers of cells where only the basal layers are attached to the basement membrane.Know More
The epithelium is one of the four major tissues in the body. It is made up of cells that are usually arranged in sheets or tubules that are connected to the underlying basement membrane. The epithelium serves as a covering for a number of internal and external surfaces of the body, and it can form glandular structures.
Different types of epithelia are classified according to the shape of the cells and whether or not the cells are layered. A simple epithelium may also appear as stratified and this type is classified as "pseudostratified epithelium." The cells that make up the epithelium are classified according to shape. These classifications are squamous (flat), cuboidal and columnar.Learn more about Biology
Prezygotic refers to any stage of the reproductive process before the formation of the zygote, while postzygotic refers to any point of life after the ovum has been fertilized. Both terms are used when describing the fertilization and conception processes.Full Answer >
A microbicidal agent kills microorganisms such as bacteria, while a microbiostatic agent only prohibits the growth of such microorganisms. In the presence of microbiostatics, the microorganisms eventually die due to lack of reproduction. Microbicidals are irreversible and lethal, while microbiostatics are reversible.Full Answer >
Chrysalis and cocoon are two physical objects that are made in the same phase of a butterfly or moth's life, however, a chrysalis refers to the casing that a butterfly makes when it transforms, whereas a cocoon is a woven case made by a moth during this stage to protect itself. The materials that a cocoon and a chrysalis are made of are also different.Full Answer >
The main difference between zooplankton and phytoplankton is that phytoplankton has the ability to manufacture its own food through photosynthesis or chemosynthesis. Zooplanktons are incapable of making their own food. Zooplanktons are animal planktons,while phytoplanktons are planktons that are capable of carrying out photosynthesis.Full Answer >