Question

define the following question:- fossil

Answer 1

Fossil remains the impression of death of decayed plants and animals. Fossil helps to identify an evolutionary relationship between apparently different species. I It is useful in knowing about the species which are no longer alive. They provide evidence and missing links between two classes. They are helpful in forming a sequence of organisms in the path way of the evolution. For more reference and example please send email to this I'd saravananjayanthan [email protected], hopes it helps you. I Please mark me as brain list.

Answer 2

FOSSILS:

Fossils are preserved remains of living organisms from remote past.

Fossil mainly preserves only a portion of the dead organism (eg: skeleton, bone, teeth etc..)

Fossils may vary from microscopic (single bacterial cell) to dinosaurs.

Layers of fossils are formed one after another over years. Deeper the layer where the fossil is found, older it is.

Composition of the fossils helps in age estimation. Age estimation detects ratios of isotopes of different elements. Each isotope has a specific half-life. For example, C-12, C-14 are isotopes of Carbon. Knowing the isotopes, we will know their half-lives. With that, we can calculate for how long it has been there, which in turn estimates the age of fossil.

Fossils at upper layers are more complex than that at lower layers

Fossils records show there is a link between birds & reptiles

Fossils records show how evolution occurred in some mammals with time