One major trend in animal evolution has been the gradual increase in the ratio of brain size to body mass. Birds of the late Cenozoic have larger ratios than cretaceous avians. This same general principle holds true for mammals, of course. I'm not so certain the relation carries over to reptiles (diapsids), turtles (anapsids), or fish.
Of course, there are cephalopods, insects, and hoary hosts of other animals. I'm not as familiar with evolutionary trends in marine species.
reduction of gametophyte phase
Over time, the demands of life on land favored the evolution of plants more resistant to the drying rays of the sun, more capable of conserving water, and more capable of reproducing without water.
Approximately : land plants have been around for a half a billion years. The Earth for 4.5 billion years. So your answer is one ninth.
Land plants can be broadly classed as "vascular" or "non-vascular". Vascular means having dedicated cells to transport water (xylem cells) and food (phloem cells) through the plant structure. Vascular plants (tracheophytes) : vegetables, trees Non-Vascular plants (bryophytes) : mosses and worts
Terrestrial adaptations are exhibited by the plants and animals living in land habitats. As there are varied types of land habitats, the adaptations shown by organisms also are of diverse kinds.
The first fossil records of vascular plants that is land plants with vascular tissues Fossil ferns and seed ferns include Pecopteris Cyclopteris
Land plants no longer require water as a medium for reproduction with evolution because with the evolution of seeds and pollen it is no longer needed.
Wind dispersed pollen is the evolution of the key step in which the adaptation of seed plants to dry land
During the course of evolution vasculature in plants developed to enable them to adapt on land. Thus vascular plants grew all over the land mass. This is a major evolutionary event. Therefore, plants are classified into vascular and non-vascular.
reduction of the gametophyte life cycle
Charophyta; Specifically stoneworts are within a green alga lineage that million of years ago gave rise to the land plants. They have a distinctive form and sex organs like land plants. -Cengage Learning
Rise of Herbivory
Paul Kenrick has written: 'FOSSIL PLANTS' -- subject(s): Fossil Plants, Plants, Fossil 'The origin and early diversification of land plants' -- subject(s): Plants, Cladistic analysis, Evolution, Paleobotany
The evolution of the seed enabled plants to resist harsh environments and disperse offspring more widely.For bryophytes and seedless vascular plants, single-celled spores are the only protective stage in the life cycle.
The evolution of the seed enabled plants to resist harsh environments and disperse offspring more widely.For bryophytes and seedless vascular plants, single-celled spores are the only protective stage in the life cycle.
The changing geologic condition of the Paleozoic age affected the evolution of animals by leading to the development of land based vertebrates and vascular plants. The largest mass extinction in our planets history happen at the end of the Paleozoic Era.
No, the plants may be small, but the evolution is macro.
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