White blood cells fight disease
Because cells are in ever living thing
Bio engineering has provided the ability to regrow tissue for knee or hip joints.
Explanation:
There are three ways heat is transferred into and through the atmosphere.
radiation. conduction. convection.
Radiation
Radiation is the transfer of heat energy through space by electromagnetic radiation.If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of your body nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way.
Conduction
Welding iron is transferring heat by conduction
Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time, the handle of the spoon will become hot.This is due to transfer of heat energy from molecule to molecule or from atom to atom. Also, when objects are welded together, the metal becomes hot (the orange-red glow) by the transfer of heat from an arc.
Convection
convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid.
Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air. This bubble of air rises into the atmosphere. As it rises, the bubble cools with the heat contained in the bubble moving into the atmosphere
An elliptical galaxy is figureless, bright galaxy that is elliptical in shape. A globular cluster is spherical constellation of stars that acts like a satellite orbiting a galaxies core.Answer A collection of from two to several hundred galaxies which are much more densely distributed than the average density of galaxies in space.well the main difference is that in a paralell system there is multipe computing units (cpu) working in one node(they share memory ,attached devices ,storage...) to accomplish a computing goal in a clustered there is multiple nodes each has its own resources running its own copy of os (susually connected via lan) to accomplish a computing goal.A constellation is a pattern of several stars that make a picture. A galaxy is a huge mass of billions of stars, dust and gas that is gravitationally.A galaxy is a massive group of stars and other elements, such as gases and dust, that are part of one system. Think of our solar system, but on a much more massive scale. Having said that all the stars in a constellation are far from each other, the stars we see are all part of the one galaxy, the Milky Way. We are all bound by gravity. Our solar system and the many of the stars that we see are on the edge of the Milky Way. If you are in an area that is free from light pollution, on a clear night you can see a long dusty looking stream in the sky that is part of the more populated part of the <span>Milky Way. hope that helped</span>
