Answer:
Epithelial cells are tightly packed, and this lets them act as barriers to the movement of fluids and potentially harmful microbes. Often, the cells are joined by specialized junctions that hold them tightly together to reduce leaks.
Explanation:
Answer:
parasites
Explanation:
live and feed inside other organisms
The answer is 25 degree, because when the sun is directly
overhead, its rays strike the earth at a 90 degree angle. The closer to 90
degrees the rays are, the more concentrated they are and the greater is the
heat they produce on the earth's surface. The solar heat reach the surface of
the earth becomes less intense as the angles of the rays decreases.
It will have a nucleus , cell wall , cytoplasm , cell membrane depending on what cell it is
Answer:
The first line of defence includes physical and chemical barriers that are always ready and prepared to defend the body from infection. These include your skin, tears, mucus, cilia, stomach acid, urine flow, 'friendly' bacteria and white blood cells called neutrophils.
Explanation: