Answer: The cell membrane is a bilayer of lipids composed mainly of lipids and proteins.
Explanation: A cell is the functional unit of life. A cell is usually surrounded by the cell membrane. A cell is composed of different organelles such as the nucleus, mitochondria, ribosome, each also surrounded by a membrane and these organelles are suspended in the fluidy part of the cell know as the cytoplasm.
A cell membrane is a thin lining that surrounds the cell and encloses the cytoplasm. It is made up of two layers of lipids in which proteins are embedded. Cell membranes allow the selective passage of materials into and out of the cell.
This procedure is called a vacuum extraction or vacuum assisted delivery. In vacuum assisted delivery, the healthcare practitioner uses a vacuum device with a cup with a handle and a vacuum pump to expedite the delivery of the baby. The vacuum assisted delivery is indicated in mothers undergoing labor for a longer time than normal; with inadequate contractions and failure of cervical dilatation to progress.
This occurs in the first stage of secondary syphilis
<span>Insecta or Hexapoda (insects) is the most diverse class. There are about 900,000 known insect species, three times as many as all other animal species together, and thousands of new ones are described each year. They are commonly grouped in 27 to 32 orders, depending upon the classification used. The largest order is that of the beetles (Coleoptera). Next, in order of size, are the moths and butterflies (Lepidoptera); the wasps , ants , and bees (Hymenoptera); and the flies and mosquitoes (Diptera). Other major orders are the true bugs (Hemiptera); the cicadas , aphids , and scale insects (Homoptera); the grasshoppers and crickets (Orthoptera); the cockroaches (Blattodea); and the mantids (Mantodea).
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The amu (atomic mass unit) of a proton and neutron are equal. The amu of the electron is significantly smaller than these.
