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What taste of petals is described by the speaker？
A．Sour.
B．Sweet.
C．Salty.
D．Odorous.
答案
更多“What taste of petals is described by the speaker？A．Sour.B．Sweet.C．Salty.D．Odorous.”相关的问题
第1题
What is the title of this short poem？
第2题
Section B
As every schoolboy knows, insects pollinate flowers, while birds and mammals disperse seeds by eating fruits or transporting burs on their feathers and fur. These are examples of co-evolution, a phenomenon first described by Charles Darwin in The Descent of Man, and Selection in Relation to Sex, published in 1871.
Co-evolution, in which two species have evolved together in response to adaptations that each has imposed on the other, can be extremely subtle. For instance, some animals may help to transfer pollen from one plant to another without acting directly as the carrier themselves. Instead, they make it easier for the pollen to be dispersed by other creatures. Mats Olsson and Richard Shine, of the University of Sydney, and Elisabeth Bak-Olsson, of the University of Gothenburg in Sweden, have discovered, apparently for the first time, such a mutually beneficial arrangement between a reptile and a plant.
For most of the year the Tasmanian snow skink lizard confined to mountain tops in that island is catholic in what it eats. But when the honey-bush is in bloom, the skinks make a point of tearing off the tough, red petals that enclose the rest of the flower. They chew them to extract the nectar and spit out what is left. At first sight, this skink-savaging may not seem all that helpful to the honey-bush. But it is. It exposes the reproductive parts of the flowers, thereby allowing pollinating insects to get at them. Dr. Olsson and his colleagues found that flowers with the petals left intact never produced seed. But, according to their paper in the Biological Journal of the Linnean Society, 87 % of flowers with the petals torn off did so.
To check that it was the skinks alone that were the plants' little helpers, the researchers placed cages around some honey-bushes. Virtually all of the petals were removed from the flowers on bushes without cages. Only 16% of the caged bushes had their petals ripped off, possibly by high winds battering them.
Dr Olsson found no evidence of pollen being carried on a skink and so concluded that the lizards play no role in transporting honey-bush pollen from one flower to another. But he did see a range of insects: wasps, flies, bumble-bees and others feeding from honey-bush flowers that had no petals covering them. Without the petals removed, it was impossible for insects to do any pollinating.
SUMMARY：
Co-evolution is【61】described by Charles Darwin in The Descent of Man. In the process of co-evolution, two species may have to respond to adaptations they have imposed on each other.
For example, some animals may not carry【62】from one plant to another. They may help by making it easier for other creatures to disperse the pollen from one plant to another. Such an arrangement seems【63】to both species. In Tasmania, the skink lizards chew the red petals of【64】and spit out what is left. In doing so, they expose the reproductive parts of the flower and enable pollinating insects to reach them. It was discovered that 87% of these flowers produced seeds. Conversely, flowers with petals remaining【65】never did.
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第3题
What is needed on the way of growth in the authors eyes？
A．Taking risks.
B．Trying the taste of failure.
C．Trying the taste-of success.
D．High ability of self-protection.
第4题
What is the girl's memory of her first western meal？
A．She could hardly remember the taste of the food.
B．The food was so bad that she could hardly stay.
C．The food reminded her of her hometown.
D．She remembered vividly how the food tasted.
第5题
What is the strong point of Taste Lean Burgers？
A．There are 25 restaurants downtown.
B．The store is handing 15% discount coupons to everyone.
C．It tastes rich with high calories.
D．Taste Lean burgers reduce more than 85% of the fat of the regular burgers.
第6题
What does the woman mean？
A．Her cookies taste the same.
B．Her cookies are better than his mother's.
C．His mother's cookies used to be good.
第7题
A.What a downpourt
B.Don't blame yourself
C.I'm willing to help you
D.You have a good taste
第8题
W: I guess it's something I haven't acquired a taste for yet.
What does the man imply？
(18)
A．He has no taste for art.
B．He didn't go to the exhibition.
C．He didn't like the paintings.
D．The paintings are too abstract.
第9题
What do you check for at the final QC stage？
A．check weight
B．check package
C．check weight, package and taste
第10题
What surprised Ms. Bertolini about the salad recipe？
A．Its directions were difficult to follow.
B．It did not taste good.
C．It was to be divided among eight people.
D．It contained too much mayonnaise.
