Period 2 Morphology

Nicole Taglione: 1. Taxonomic classification was founded in 1735 by Swedish naturalist Carolus Linnaeus.
2. Even today, the same four branches of biological science - biogeography, paleontology, embryology, and morphology have even greater supporting evidence and data.
3. One problem today, with using morphology, data may appear to be two distinct species, but in actuality are single species, shown by DNA analysis.

Patterns of resemblances such as all living organisms have nuclei within their cells and contain DNA and RNA show that similar species within broader groupings and are all descending from a single source.

The number of shared characteristics between any one species and another indicates how recently those two species have diverged from a shared lineage.

Morphology gives scientists the ability to examine he structural origin of species. While learning how species developed the ability to perform critical tasks such as getting food and avoiding predators.

Organisms can be organized into catagories based on the similarities and differences of their anatomical characters.

All plants, fungi, and animals have nuclei in their cells; and all living organisms contain DNA and RNA.

Morphology refers to the aspects and parts of an organism and how they are put together.

This process allows for systematic classification through the study of internal as well as external anatomies of organisms.

Common ancestors are what link these mammals together, possessing the same basic anatomical structures.

Some morphological research compares homologous (similar in origin) or analogous (similar in function) structures among different species

All plants and fungi, as well as animals, have nuclei iwithin their cells.
Tiered resemblance is groups of similar species nested within broader groupings, and all descending from a single source.

Morphology is the form or structure of organisms.

Animals and plants are categorized by the different features that they have, noticable and not noticable.

The difference between sorting non-living and living things is biological diversity. This reflects an unbroken descent from common ancestors and the shared characteristics between any one species and another.

The explanation is to a large extent simple on the theory of the selection of successive slight modifications,—each modification being profitable in some way to the modified form, but often affecting by correlation other parts of the organisation.

Taxonomic classification was founded in its modern form back in 1735 by Carolus Linnaeus, who was a Swedish naturalist.

Vestigial characteristics are another form of morphological evidence. They show that the living world is full of small, tolerable imperfections. They stand as remnants of the evolutionary history of a lineage.

Evolution of morphology can occur through the mutation of single genes. It is not necessary for all genes to mutate at once. Thus, it requires only minor alterations in the developmental controls in early limb development to cause differences in overall limb morphology that we see as seemingly quite dramatic, such as those illustrated below.

Darwin wrote, must be struck by the mysterious clustering pattern among what he called "closely allied" species. Dispite their species-of-species preferances for different habitats, food sources, or conditions of climate. One species endures for millions of years abd then makes its last apperance in, say, the middle Eocene epoch.

Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License