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Scientists distinguish mammal fossils by their teeth and jawbones. These structures are completely unique to mammals. ChaCha!

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Fossils formed when an organism dissolves and leaves an empty space in a rock are called?

Voids left behind by once present fossils are called 'trace fossils'.


What are the fossils used for on Pokemon platinum?

You can take the fossils to the museum in Oreburgh City. There you can take them to the guy behind the desk and he delivers you the Pokémon from the fossil.


Pieces of bones shells or plants left behind are called wat?

fossils?


What shelled creatures developed in the Cambrian Period leaving behind excellent fossils?

Trilobite


What are the 4 characteristics shared by all mammals?

I think there is more than 4.These charactheristics only mammals have:1. Only mammals(female) produce milk to feed their young. Milk is produced in the mammary glands, and it is from here mammals have gotten their name.2. The lower jaw in mammals is a single bone on either side. In all other vertebrates there are more than one bone on each side of the jaw3.The mammal middle ear, and only the mammal middle ear, contains 3 bones. The Stapes or (Stirrup), Incus or (Anvil) and the Malleus or (Hammer)4.In mammals the main artery leaving the heart curves to the left becoming the aortic arch. In birds it curves to the right and in all other vertebrates there are more than one main artery leaving the heart.5.Mammals have a diaphragm. A sheet of muscle and tendon that separates the body cavity into two sections. Heart and lungs before/above, liver, kidneys, stomach, intestines, etc, behind/below. No other animal has a diaphragm.6.No other animal has hair in the same form as mammals, and all mammals have some hair at least at the beginning of their lives - baby whales and dolphins are born with a moustache.And then there are several more than mammals share with other groups, like verterbrae and that mammals are warm blooded, and that mammals have lungs to breathe airAll mammals are warm blooded,All mammals are air breathersMammals give live birthEvery mammal is a vertebrate.


Define fossils and explain how fossil are made?

Fossils are depositions of dead animal imprints and/or bones. When an animal or plant dies, its skin rots away, leaving behind the bone or imprint.


Why can't you turn fossils into Pokemon on Pokemon pearl?

got to orebrough city mining meuseum and talk to the person on the right behind the counter and she will turn the fossils into Pokemon for you


How did people know dinosaurs are real?

When a dino dies, it becomes a fossil. We know that the dinosaurs existed because they left behind fossils we see today.


How does the fossils record arganize fossils?

The fossil record is thought to organize things in age order with the older rocks behind at the bottom and newer rocks being at the top.


Prehistoric reptile ancestor of mammals?

The prehistoric reptile ancestor of mammals is called Synapsids. They were a group of reptiles that lived during the Permian and Triassic periods, and eventually evolved into mammals in the Mesozoic era. The most well-known synapsids include Dimetrodon and Thrinaxodon.


What fossils formed when an organism dissolves and leaves an empty space in a rock are called?

Voids left behind by once present fossils are called 'trace fossils'.


What types of fossils forms wheather there are microbes are present or not?

Fossils can form even if microbes are not present. Microbial fossils, such as stromatolites, can form when microbes are present and leave behind structures or chemical signatures that are preserved in the rock record. Non-microbial fossils can include the preserved remains of plants, animals, or other organisms from ancient environments.