Sentences with phrase «angiosperm plants»

It is the product of the ripened ovule of gymnosperm and angiosperm plants which occurs after fertilization and some growth with in the motherplant.

Not exact matches

The production of seeds distinguishes the gymnosperms and the angiosperms from other members of the vascular plants.

Plants were evolving fast during the Mesozoic, with the rise of cycads, conifers, and especially the angiosperms or flowering plants in the CretaPlants were evolving fast during the Mesozoic, with the rise of cycads, conifers, and especially the angiosperms or flowering plants in the Cretaplants in the Cretaceous.

But the angiosperms — the flowering plants — suffered devastating losses.»

Among the plants and trees that exist in our contemporary landscape, angiosperms include almost everything except conifers, ferns, cycads, and ginkgoes.

In fact, the team reports in an upcoming issue of the Proceedings of the Royal Society B, there seems to be no correlation between dino diversity and the proliferation of flowering plants, and there is scant fossil evidence linking angiosperms to the dino diet.

«A large portion of the flowering plants, or angiosperms, depended on the insects for pollination, and insects were a major factor in creating the soil conditions on which the plants grew,» Wilson says.

While the majority of angiosperm species disperse their pollen in this early, bicellular, stage of sexual maturity, about 30 % of flowering plants disperse their pollen in a more mature fertile stage, consisting of three cells (a body and two sperm cells).

Cross-fertilization led to diversification of both plants and their insect predators, culminating in the evolution of the angiosperms.

Williams contends that these innovations took hold at least 125 million years ago and made it possible for early angiosperms to evolve more flexible and sheltered modes of fertilization, including ovaries containing egg cells deep inside the plant.

There are an estimated 270,000 known species of angiosperms, or flowering plants, but only about 900 species of gymnosperms, which are nonflowering plants such as conifers, cycads, and ginkgoes.

The angiosperm family Rubiaceae contains the highest diversity of ant plants, and the new study focused on those in the subtribe Hydnophytinae, of which some 100 species are found in southeast Asia and Australasia.

Dogma in the field maintains that angiosperms, as flowering plants are called, evolved from shrubs that resembled modern magnolia trees.

And that would have given the angiosperms the energy to push competitors like conifers out of the canopy around 150 million years ago, making angiosperms the most productive group of land plants in the world.

«The work provides the first quantitative, physiological, and phylogenetic framework for understanding why, when, and how angiosperms evolved much higher photosynthetic rates than other plants.»

More leaf veins made the plants better photosynthesizers, the duo reports, enabling angiosperms to outgrow their competition.

The study appearing Sunday (Dec. 22) in the journal Nature and co-authored by University of Florida scientists shows many angiosperms, or flowering plants, evolved mechanisms to cope with freezing temperatures as they radiated into nearly every climate during pre-historic times.

Thus, while England's native flora was largely scraped away by glaciers, in the Hengduans a variety of plants flourished — including angiosperms, such as the Magnoliaceae and Ranunculaceae, which originated in the Cretaceous Period.

Flowering plants, also called angiosperms, arose at least 160 million years ago and quickly spread; today, they number more than 300,000 species that adorn the landscape and feed the world.

Applying biomechanical formulae to a treasure trove of thousands of fossilized leaves of angiosperms — flowering plants excluding conifers — the team was able to reconstruct the ecology of a diverse plant community thriving during a 2.2 million - year period spanning the cataclysmic impact event, believed to have wiped out more than half of plant species living at the time.

We observed a rapid and distinct increase in plant diversity and origination rates, with a set of new taxa, mostly angiosperms, added to the existing stock of low - diversity Paleocene flora.

The researchers recently mapped out the largest evolutionary time - scaled tree that included leaf and stem data which documented 32,000 species of flowering plants, also called angiosperms.

Abstract Polyploidy is a common mode of speciation and evolution in angiosperms (flowering plants).

These cells are only available in a specific plant class: the angiosperms or flowering plants.

In his research, Dr. Torres examines the properties of plant polyploidy (genome doubling), the concomitant phenomenon of gene duplication, and the evolution of genes, gene families, chromosomes, and genomes following genome doubling in angiosperms.

Nearly all edible plant foods however, with the exception of such things as pine nuts and fiddlehead ferns, are derived from members of the vast diversity of flowering plants, the angiosperms.

The flowering plants, or angiosperms, appeared in the Mesozoic.

Origin of Flowering Plants, Origin of Angiosperms, Triassic Origin of Angiosperms, Paraphyletic Origin of Flowering Plants, Coevolutionary Hypothesis Start online dating with Match.

BEACHCOMBERS TIP: of the two plant types angiosperms (flowering) and gymnosperms (seeds not in a seed case), these are flowering plants, with small non-descript flowers of a sort on the blades.

All of the resources we need to survive come from flowering, fruit bearing plants: Angiosperms.

The other lineage (known as Euphyllophyta) includes two major clades: the spermatophytes or seed plants (including more than 250,000 species of angiosperms [flowering plants], conifers, cycads, gnetophytes, and the Gingko) and the monilophytes or ferns (sensu lato, including the horsetails, whisk ferns, and eusporangiate and leptosporangiate ferns, with most of the roughly 12,000 monilophyte species being leptosporangiate ferns).

Angiosperms are seed - producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies (derived characteristics).

«The flowering plants (angiosperms), also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants.