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Dinosaurs and angiosperms were the most visibly dominant lineages during which geologic era?
Wiki User
∙ 13y ago
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.
Wiki User
∙ 13y ago
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What are found in all protists lineages?
Mitochondria
What ecological conditions do you think might result in the rapid diversification of some lineages?
Changing conditions, relatively open biomes, and producing fragmented habitats might result in the rapid diversification of some lineages. Stable conditions result in a long term evolutionary stasis.
How would you describe the characteristics of opisthokonta?
is an eukarotic super-clade that comprises metazoa (animals), fungi, and several other unicellual lineages, such as the chanoflagellates and have a single posterior flagellum with a pair of centrides and flattened mitochondria cristae
Are protists monophyletic polyphyletic or paraphyletic?
Protists are a paraphyletic group because animals, fungi, and plants are the crown groups evolved from different lineages of the protists. They aren't included in the same group as protists taxonomically. This explains why the cladists consider the protist a paraphyletic group.
What is the relationship between the fossil record and the scientific theory of evolution?
The fossil record independently confirms the general hypothesis of common descent, and allows palaeontologists and evolutionary biologists to confirm specific proposed phylogenies as well as specific hypotheses about the evolutionary past of various lineages.
Dinosaurs and angiosperms were dominant lineages during with geologic era?
I know that the angiosperms were most dominant during the cretaceous period but im not too sure about the dinosaurs dominant era. I would assume they were both dominant in the same era but I am not 100% sure.
What does Hadero mean when she uses the term and ldquosonic lineages and . What does she describe as her own sonic lineages?
What does Hadero mean when she uses the term, "sonic lineages". What does she describe as her own sonic lineages?
What is the word for a group of lineages?
The term meaning "a group of lineages" is a clan. A lineage is a group of families descended form a common ancestor.
What may have occurred to prevent species that are of the same grade from also belonging to the same clade?
similar structures arising independently in different lineages, convergent evolution among different lineages, and adaptation by different lineages to the same selective pressures
How does evolution lead to the tree of life?
Evolution is a process of continuous divergence. A lineage splits, producing two or more diverging descendant lineages. Each of these lineages may then produce more diverging lineages, like branches stemming from a trunk. As such, a tree structure nicely represents the plot of diverging lineages and their ancestors. Hence, the so-called "tree of life".
Which is strong evidence that similar traits in different evolutionary lineages are the result of homology and not homoplasy?
The traits are also found in many intervening lineages on the tree of life
What are found in all protists lineages?
Mitochondria
Was Australopithecus a biped or quadruped?
The ancestral mode of locomotion of dinosaurs is thought to be bipedalism. This is supported by the fossil finds of early, basal dinosaurs such as Eoraptor, which lived during the Middle Triassic, over 230 million years ago, and which are clearly bipedal. In fact, bipedalism evolved in the archosaurian ancestors of dinosaurs, and dinosaurs simply inherited it, as did their close relatives. Later on, some dinosaurs evolved quadrupedalism, and this happened independently in several lineages of dinosaurs, such as the ceratopsians (i.e. Triceratops) and sauropods (i.e. Apatosaurus). Some were mostly quadrupedal, but could occasionally assume a bipedal posture (it is believed that hadrosaurids were facultatively bipedal while running, for example). Finally, some retained their ancestral bipedalism - this includes the theropods, and their modern descendants, the birds.
Who are the headmonks of Tibetan Buddhism?
The head monk of Tibetan Buddhism is the Dalai Lama. Each of the four major lineages (as well as some minor lineages) have their own head as well.
Why do so few birds have penises?
Because the dinosaurs from which birds are descended did not have penises. Nevertheless, penises have evolved in a few separate bird lineages, like the group to which ducks, geese and swans belong. But the separate origins of these organs show: they are quite different in structure and function from mammalian penises.
What term is used for an animal with cells from 2 different lineages?
chimera
Were dinosaurs egg laying mammals?
Dinosaur are not mammals. Mammals and dinosaurs evolved from completely different genetic lines. Birds are the closest and only living decedents of dinosaurs (except possibly a few rare species not known to science and only known to local tribal legend such as Mokele-Mbembe but this is not widely believed)
