About 80 percent of the world's plants are angiosperms.

世界上大约80%的物是被子物。

The study identified two periods of diversification among angiosperms.

该研究确定了被子物的两个多样化时期。

Angiosperms are plants that produce flowers and produce their seeds in fruits.

被子物是开并在果实中产生种子的物。

At that time, 80 percent of major angiosperm species arose.

当时，80%的主要被子物物种出现了。

There are 300,000 species of extant angiosperms around the world.

世界上现存的被子物有 30 万种。

Angiosperms are the most evolved, diverse, widely distributed and adaptable group of plants today.

被子物是当今最进化、最多样化、分布最广、适应性最强的物群。

Baker said angiosperms are more successful at reproducing than gymnosperms.

贝克说，被子物比裸子物在繁殖方面更成功。

Gymnosperms and angiosperms both have seeds.

裸子物被子物都有种子。

The researcher in charge of the study said that flowers and fruits are part of the angiosperm family.

负责这项研究的研究员说，果是被子物家族的一部分。

Angiosperms evolved a high diversity of fruit types, permitting effective seed spread.

被子物进化出了高度多样性的果实类型，允许有效的种子传播。

Flowering plants are also called angiosperms.

开物也被称为被子物。

The study could help scientists better understand disease and pest resistance in angiosperms.

该研究可以帮助科学家更好地了解被子物的抗病性害虫抵抗力。

These angiosperms lost so much water into the air that as they spread, they brought their own rain with them.

这些被子物在扩张过程中，虽然失去了这么多的分到空气，但他们也携带了自身的雨。

These days, flowering plants called angiosperms dominate our planet.

如今，被称为被子物的开物 主宰着我们的星球。

As gymnosperms declined, angiosperms or flowering plants filled the niches  they left behind.

随着裸子物的衰落，被子物或开物填补了它们留下的生态位。

Many insect species are also prolific pollinators, stimulating the reproduction of angiosperms or flowering plants.

许多昆虫物种也是多产的传粉者，刺激被子物或开物的繁殖。

But early angiosperms didn't have the reproductive structures that made a long proboscis necessary.

但是早期的被子物不具备长长的喙所必需的生殖结构。

For the angiosperms to take over, they had to develop relationships with pollinators.

为了让被子物接管，它们必须 与传粉者建立关系。

The research explains how angiosperms appeared and became widespread during the age of dinosaurs.

这项研究解释了被子物是如何在恐龙时代出现并广泛分布的。

Grasses are simple forms of angiosperms that bear their encapsulated seeds on long stalks.

草是被子物的简单形式，它们的长茎上带有封装的种子。