Flowers` importance in nature is everywhereââ¬âthey can feed insects, birds, animals and humans; provide natural medicines for humans and some animals; and aid in a plantââ¬â¢s reproduction by enticing outside pollinators. Without flowers, plants would merely be green, and the world would be a duller place.The main purpose of flowers is to aid in plant reproduction. Flowers provide an eye-catching attribute to an otherwise plain, green-leaved plant. When insects, birds and some bats dip down to take a look at the flower and steal its nectar, they are inadvertently pollinating the plants by moving pollen or plant sperm from the male stamens to the female pistils.There are a variety of insects that feast on the nectar of flowers, but the most notable ones are bees, wasps, ants and butterflies. Because these flowers rely on an outward source to pollinate them, some plants have evolved to make themselves even more attractive to their pollinators
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授權類型 | 尺寸 | 像素 | 格式 | 點數 | |
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標準授權 | XS | 384 x 480 | JPG | 13 | |
標準授權 | S | 640 x 800 | JPG | 15 | |
標準授權 | M | 1549 x 1936 | JPG | 18 | |
標準授權 | L | 2000 x 2500 | JPG | 20 | |
標準授權 | XL | 2529 x 3162 | JPG | 22 | |
標準授權 | MAX | 3120 x 3900 | JPG | 23 | |
標準授權 | TIFF | 4412 x 5515 | TIF | 39 | |
進階授權 | WEL | 3120 x 3900 | JPG | 88 | |
進階授權 | PEL | 3120 x 3900 | JPG | 88 | |
進階授權 | UEL | 3120 x 3900 | JPG | 88 |
XS
S
M
L
XL
MAX
TIFF
WEL
PEL
UEL
標準授權 | 384 x 480 px | JPG | 13 點 |
標準授權 | 640 x 800 px | JPG | 15 點 |
標準授權 | 1549 x 1936 px | JPG | 18 點 |
標準授權 | 2000 x 2500 px | JPG | 20 點 |
標準授權 | 2529 x 3162 px | JPG | 22 點 |
標準授權 | 3120 x 3900 px | JPG | 23 點 |
標準授權 | 4412 x 5515 px | TIF | 39 點 |
進階授權 | 3120 x 3900 px | JPG | 88 點 |
進階授權 | 3120 x 3900 px | JPG | 88 點 |
進階授權 | 3120 x 3900 px | JPG | 88 點 |