百度试题 题目Flowers which are pollinated by beetles usually A. have a sweet scent. B. produce nectar C. are white or dull in color. D. all of the above. 相关知识点: 试题来源: 解析 C.are white or dull in color.反馈 收藏
Since wind-pollinated flowers have no need to attract insects or other animals, they have dispensed with bright petals, nectar, and scent. These are at best a waste and at worst an impediment to the transfer of pollen in the air. The result is insignificant-looking flowers and catkins dens...
B、Bee's immune system adapted to the Imidaclorid C、Imidaclorid inhibited the bee's ability to pollinate flowers D、Imidaclorid increased the bee fertility rate E、Imidaclorid affected the bee's ability to bring home food 答案: D E...
B.Animals serve as pollinators even where there is little wind to disperse the pollen.An animal that visits a flower is likely to deliberately visit other flowers of the same species and pollinate them.Birds and insects fly in all directions, not just the direction the wind is blowing at a...
In a similar way, trees in temperate forests that are insec t pollinated tend to grow as solitary widely spread i Since wind-pollinated flowers have no need to at tract insects or other animals, they have dispensed w ith bright petals, nectar, and scent. T hese are at bes a waste ...
Yes, some species of bats play a crucial role in pollination. They help pollinate various plants, including some species of fruit trees and flowers. Are there any flying mammals that are carnivorous? While most flying or gliding mammals are not strictly carnivorous, some bat species do consume ...
Which organism is benefited in the interaction? Mutualism: In mutualistic interactions,both speciesbenefit from the interaction. A classic example of mutualism is the relationship between insects that pollinate plants and the plants that provide those insects with nectar or pollen. ...
In Asia, where palm trees are non-native, the trees' flowers have traditionally been pollinated by hand, which has kept palm fruit productivity unnaturally low. When weevils known to be efficient pronators of palm flowers were introduced into Asia in 1980, palm fruit productivity increased— by...
Since wind-pollinated flowers have no need to attract insects or other animals, they have dispensed with bright petals, nectar, and scent.These are at best a waste and at worst an impediment to the transfer of pollen in the air.The result is insignificant-looking flowers and catkins (dense...
Insects can also be used as a fishing bait, because many types of fish love to eat insects. The picture shows a bird enjoying a mealworm. Insects help recycling biomass Many insects live as scavengers and feed on dead animals. Others feed on dead plant materials. In this way they help re...