20 Figure 11. A mobile antenna horizontal-plane pattern [13]Figure 12. Corner-reflector antennas light bar mounted on the roof ahead of theantenna. 5.3 Corner Reflector An antenna comprised of one or more dipoleelements in front of a corner reflector, calledthe corner-reflector antenna, is illustrated infigure 12.
Cheek cells, being animal cells, do not contain a cell wall as onion â¦ cells do becasue cell walls are found only in plant cells for structure and rigidness. Onion cells, unlike most plant cells, do not have chlorplasts becasue it does not need sunlight for photosynthesis as other plants do.
The Similarites between an animal and a plant cell is that both of the cells have nucleus' which controls the cell. They both have a cell membrane to control what goes in and â¦ out of the cell. They both have cytoplasm which stores important chemicals and nutrients. The Differences are the plant cells have a cell wall whereas animal cells don't. Cell walls basically provide frame work. Also, Plant cells have chloroplasts and animal cells dont.