SORU: aşağıdaki parçaya göre cevaplayınız
It can be understood from the passage that special markings on some flowers ----.
It is to a plant's advantage to be visually attractive to a
specific pollinator so that those animals will seek out
and concentrate on that particular plant during their
search for nectar. This keeps pollen from being spread
to other plant species, where pollination won't take
place. Flowers appeal to their pollinators' sensory
systems by using signals such as alluring odours or
colours. Flowers pollinated by nocturnal animals like
bats and moths, which rely more on hearing than smell
and sight, usually have dull colours but powerful
scents. Flowers pollinated by daytime animals like birds
and bees, however, rely on a range of colours. Birds
see a spectrum somewhat similar to ours but are
especially receptive to red, so blossoms pollinated by
them tend to be red or orange. Bees, on the other
hand, see a different spectrum composed of yellow,
blue, green, and ultraviolet. Flowers pollinated by bees,
hence, tend to be in those colours and usually have
special markings that are visible only in ultraviolet. Like
runway lights, these markings guide insects to the right
place to land and find nectar, and in the process,
pollinate the plant.