scientists classify organisms into groups based on internal and external features.
In the past, classification relied on body structure, internal and external, as well as mode of reproduction. The change now is that scientists are using DNA to fine tune classification.
In the past, classification relied on body structure, internal and external, as well as mode of reproduction. The change now is that scientists are using DNA to fine tune classification.
Anatomy is considered a branch of morphology because it focuses on the structure and organization of living organisms. Morphology, in general, is the study of form and structure of organisms, while anatomy specifically deals with the internal and external structure of organisms. By examining the anatomical features of organisms, scientists can better understand their functions and relationships with other species.
Some characteristics that scientists use to classify animals are how many cells they have, their species, genus and family and what they eat.
Scientists now use DNA to classify organisms because it provides more accurate and reliable information about the evolutionary relationships between different species. DNA analysis allows for a more precise classification based on genetic similarities, which can be more informative than physical characteristics. Additionally, DNA analysis is less subjective compared to evaluating external features, making it a more standardized approach to classification.
Internal and external? 4real
Archaebacteria are some of the oldest organisms living on Earth. They are considered simple because of their external body structure.
The earliest scientists put living things in two main category, and the second category was subdivided into two further classes, a second of which, broken into three levels. The two category; Thing that can kill us.- Things that we can kill. This second has two classes; non edible, and edible, which has three levels; yummy,- not too bad,- taste like sh..t, but better then nothing.
Shape is a physical property that describes the external form or appearance of an object, such as its dimensions and structure. It can be used to help identify and classify objects based on their outline, contour, or geometric characteristics.
A structure outside. A skeleton of an object.
skin
classification refers to identifying, naming and grouping of organisms into formal system based on similarities of their internal and external structure or evalutionary history RIGHT OUT OF THE BIOLOGY BOOK :D