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there are 8 more of taxa true clades here are some Pises, Amphibia, Mammalia and Tetudines
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Which of the following are problematic when the goal is to construct phylogenies that accurately reflect evolutionary history A monophyletic taxa B polyphyletic taxa C paraphyletic taxa?
Polyphyletic and paraphyletic taxa are problematic when the goal is to construct phylogenies that accurately reflect evolutionary history. These taxa do not accurately represent the evolutionary relationships between species and can lead to incorrect interpretations. Monophyletic taxa, on the other hand, are ideal for constructing phylogenies as they include all descendants of a common ancestor.
What is true of macro-evolution?
It is true that speciation occurs. Since macro-evolution is defined as evolution at and above the species level, this makes the statement that macro-evolution occurs an independently verifiable fact.It is also true that in biology we find nested hierarchies at every level - both at the range of observation from the molecular to the morphological, and at the range of groups from the single species to life-kind in general. This is precisely what we would expect if common descent were true not just within the genus, but for all known life.Furthermore, it is true that we find morphological intermediates in the fossil record: forms that are intermediate morphologically between basal clades in the nested hierarchies of life and clades derived from those basal clades. A basal clade is a group of organisms linked by shared features; a derived clade is a group within that larger group that shares all those features, but is also linked by a distinct set of features present only within that smaller group. An example of this is the basal clade of Apes, and the derived clade of Great Apes, between which exists, for instance the transitional form Pierolapithecus catalaunicus. This, again, is exactly what we would expect to find if macro-evolution were not just true for minor taxa (eg. within a genus), but for all taxa, throughout time.There are many statements about macro-evolution that have been verified through observation. The complete list of possible truths about macro-evolution is too large to detail in a single answer.
How do you identify clades?
Monophyletic groups in the tree of life. Must be an ancestor and all of its descendants (monophyletic).
What are clades A clade is a group of organisms consisting of a common ancestor and all its descendants But doesn't every living thing have a common ancestor Please help Thanks?
Yes, all living things are just groups of organisms consisting of common ancestors and all their decendant's. Clades is just a word that means a group of organisms.
What is phylogenetic line?
An ancestor-descendent line; the sequence of ancestral taxa leading from some point in the ancestry through time to a specific taxon. For example, our complete phylogenetic line would include all taxa that are in the ancestry of both apes and humans as well as all taxa ancestral to modern humans from the time the human line split from the ape line.
Are all spheres similar true or false?
True only if they have different diameters
is it true that All light waves travel at different speeds in different materials?
never mind I figured it out. it is true
What kingdoms came from protists?
protista is a kngdom. hope this answers your question
What generalisation is true for all immigrants?
All immigrants are from a different country.
A phylogenetic tree that is rooted is one?
At whose base is located at the common ancestor of all taxa depicted on the tree.
Why is it easier to group mammal in taxa but not human?
because humans are more closely related to animals and not all mammals
Is it true that a vacuum different color of light travel at different speeds?
No, that is not true. In a vacuum, all electromagnetic waves travel at the same speed.
