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Antherozoid (spermatozoid) The male gamete of algae, some gymnosperms, and the non-seed-bearing plants.

藻类,某些裸和没有种形成的中的雄性配

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Areography of the gymnosperms of China (1): Distribution of the Pinaceae of China.

中国裸分布的研究(1)——松科的地理分布.

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The carpel is homologous with the megasporophylls of certain spore-bearing vascular plants (pteridophytes) and the ovuliferous scales of gymnosperms.

心皮和能产生孢的维管类)还有具胚珠的裸的大孢叶是同源的。

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Bract scale The structure found in large numbers in the female cone of gymnosperms, each bearing an ovuliferous scale in its axil.

在裸的雌球果中大量存在的结构,每个苞鳞都包含一个珠鳞。

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foreglimpse, forego, foregoer, foregoing, foregone, foregone conclusion, foregrinding, foreground, foreground processing, foregrounding,

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PBS Eons | fauna&flora

They spread into many ecological niches and replaced the gymnosperms.

它们扩散到许多生态位并 取代了物。

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PBS Eons | fauna&flora

But the gymnosperms haven’t been totally abandoned by their pollinators.

物并没有 被它们的传粉者完全抛弃。

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PBS Eons | fauna&flora

So, why was this butterfly-lookalike visiting a gymnosperm 165 million years ago?

那么,为什么这只长得像蝴蝶的人会 在 1.65 亿年前造访物呢?

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PBS Eons | fauna&flora

The sweet pollen drops of some modern gymnosperms still attract pollinating flies and moths.

一些现代物的甜花粉滴 仍然吸引授粉的苍蝇和飞蛾。

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PBS地球-动物

The pollen it picked up was from a gymnosperm – the group that includes pines, cycads, and ginkgoes.

它采集的花粉来自物——包括松树、苏铁和银杏在内的物群。

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PBS Eons | fauna&flora

But, for most of the history of land plants, gymnosperms were dominant.

但是,在陆地物的大部分历史中, 物占主导地位。

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PBS地球-动物

The lacewing fossilized with pollen on its mouthparts shows how pollination began between ancient groups of insects and gymnosperm plants.

器上带有花粉的草蛉化石表明,古代昆虫群体和物之间的授粉是如何开始的。

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PBS地球-动物

Gymnosperms don't make nectar, but they do make nutritious pollination drops that are used for trapping airborne pollen.

物不产生花蜜,但它们确实产生有营养的授粉滴,用于捕获空气中的花粉。

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PBS地球-动物

These specialized structures of early gymnosperms weren't big cones like you'd see on a pine tree today.

早期物的这些特殊结构并不像你今天在松树上看到的那样大。

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PBS地球-动物

Analysis of the pollen showed that it was mostly from a mix of gymnosperm plants, including cycads and ginkgos.

对花粉的分析表明, 它主要来自物的混合物,包括苏铁和银杏。

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PBS地球-动物

As the angiosperms got their foothold and attracted crossover pollinators like beetles, some pollinators still remained loyal to the gymnosperms.

当被物站稳脚跟并吸引甲虫等交叉传粉者时,一些传粉者仍然忠于物。

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PBS地球-动物

Like the scorpionflies and lacewings, these true flies were thriving on the reproductive structures of gymnosperms, not angiosperms.

像蝎蝇和草蛉一样,这些真正的苍蝇在物而非被物的生殖结构上繁衍生息。

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PBS地球-动物

Which is weird, because today most gymnosperms are conifers - plants whose reproductive structures often look like cones and are pollinated by wind, not by insects.

这很奇怪, 因为今天大多数物都是针叶树——它们的生殖结构通常看起来像球果,靠风而不是昆虫授粉。

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PBS地球-动物

But the gymnosperms haven't been totally abandoned by their pollinators.

但是物并没有被它们的传粉者完全抛弃。

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PBS地球-动物

Like, organs called nectaries evolved, which delivered tasty nectar rewards to pollinators - these were a new take on the old pollination drops of gymnosperms.

比如, 进化出蜜腺器官,将美味的花蜜奖励给传粉者——这些是对物旧授粉滴的新诠释。

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PBS地球-动物

So, beetles may have been the insects that were best able to shift from their relationships with gymnosperms to the new resources offered up by angiosperms.

因此,甲虫可能是最能从与物的关系转向被物提供的新资源的昆虫。

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PBS地球-动物

It was actually something between  a fern and a group of woody plants that exists today called gymnosperms, which includes conifers and gingkos.

它实际上介于蕨类物和今天存在的称为物的一组木本物之间,其中包括针叶树和银杏。

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PBS地球-动物

As for the gymnosperms, most of them are back to being wind-pollinated, with airborne pollen that gets stuck in pollen drops.

至于物, 它们中的大多数又回到了风媒授粉的状态,空气中的花粉被困在花粉滴中。

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PBS地球-动物

A single individual was found fossilized in 105 million-year-old amber from northern Spain with gymnosperm pollen dusted on its mouthparts, legs, and back.

在来自西班牙北部的 1.05 亿年前的琥珀中发现了一个个体的化石,其器、腿和背部上撒满了物花粉。

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PBS地球-动物

The stage for insect pollination was set possibly as far back as the Permian Period, when insects are thought to have started feeding on gymnosperm plant fluids.

昆虫授粉的阶段可能最早可追溯到二叠纪时期,当时人们认为昆虫已经开始以物的液体为食。

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forehock, forehold, forehoods, forehoof, forehook, forehorse, foreign, foreign aid, foreign bill, foreign correspondent,

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3G, 401(K), a,
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