Bees will visit flowers, or things like hazel catkins purely for pollen. They also collect a resinous substance called propolis from tree buds and other plant sources like flows of sap. They use this as a sealant for small gaps in the hive.
It's very unlikely for a mouse to pollinate plants because mice are not nectar feeders.Some bats are nectar feedars, and hummingbirds are, and these would pollinate the flowers they visit.
The flowers carry nectar, so when the bees collect the nectar they eat it. That helps produce the honey. The nectar in the flowers is the bees food source. Without flowers, the bees would all die out.
As a rule no. They do visit blackberry flowers and collect pollen and nectar, and in doing so they pollinate the flowers. If they did not do this, you would not get many blackberries, and those you did get would be uneven and small. If a bee happens to find a damaged ripe blackberry it might lick up some of the juice, but that is about as much as you might expect. Pollen and nectar is what they are after.
Overall brightly colored flower petals assist in attracting insects, birds and small mammals to the flower for pollination. Coloured petals and nectar are normally used in conjunction - the petals as the attractant and the nectar as the "reward". Some petals which are not brightly coloured to humans, but reflect light in the Ultraviolet spectrum which some insects and birds can see.
Nectar is produced by flowers to attract insects, bats or birds that will help to carry its pollen to other plants (and bring fresh pollen to it). If a plant is pollinated in the wind, then it doesn't need to spend the energy to make nectar.
In most plants, this would be the flower; specifically, the petals.
butterfly that drinks nectar
New evidence shows that bees see the world in a higher-frequency prism of light than humans & the flowers seem to "light up" as if under a black light for them. If you could see what they see, you would understand their excitability around the flowers & their ability to move directly toward the flowers from a great distance.
Long And Pointed
[1] It has been estimated that a honey bee must visit 2 million flowers to make 0.5 kilogram, or 1.1 pound, of honey. [2] There are 1,000 grams in 1 kg. So a honey bee must visit 4,000 flowers to make 1 g.
Are bright in colour Produce sugary nectar Are large in size Have a scent
It has branched vascular veins in its leaf petals, it's roots spread out more vastly than a monocots would, and it also has 8 flower petals when it flowers? Bon appétit