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.
Plant cells have a cell wall, but animal cells do not.Plant cells have chloroplasts and chlorophyll, but animal cells do not.Plant cells contain plastids, but animal cells do â¦not.Plant cells generally have a more rectangular shape because the cell wall is more rigid.