Paleontology

A common Devonian fossil is the trilobite, which was an ancient marine arthropod with a hard exoskeleton. Trilobites were diverse and abundant during the Devonian period, with many different species found in rocks from this time period. Their distinctive appearance and widespread distribution make them one of the most well-known fossils from the Devonian period.

Fossil beds are geological formations where a concentration of fossils is preserved. These beds often result from the deposition of sediments over a long period of time, which helps protect and preserve the fossils within them. Scientists study fossil beds to understand past ecosystems and the evolution of organisms over time.

To calculate her angular momentum, you would need to know her moment of inertia (which depends on both her mass and how this mass is distributed relative to the axis of rotation), her velocity (speed at which she travels in a circular path), and the radius of the circle she is skating. You would use the formula for angular momentum, which is given by the equation: L = I * ω, where L is angular momentum, I is moment of inertia, and ω is angular velocity.

i'm not sure but i think it's original preservation.

The Devonian Period is a part of the Paleozoic Era, which covers the time from 541 to 252.17 million years ago. It began with the Cambrian explosion, in which most phyla of life began, and ended with the mass extinction called the Permian-Triassic extinction event.

No. A mammoth trapped in ice is a body fossil.

Trace fossils are evidence of life but not part of the animal itself. Examples of trace fossils are footprints, nests, worm burrows, teeth marks etc. Coprolites (fossilized Dung) in the strictest sense are also trace fossils.

Eggs, teeth, bones, skin, hair, feathers etc are all body fossils.

During the Cenozoic era, angiosperms (flowering plants) evolved to become the dominant land plant group. Their efficient reproductive structures (flowers) and ability to co-evolve with pollinators and seed dispersers allowed them to outcompete other plant groups. This dominance was further bolstered by their ability to adapt to a wide range of environments and climates.

This is a pagan symbol of the rebirth of the earth in celebrations of spring and was adopted by early Christians as a symbol of the ressurection of Jesus.

i hope it helps..

Yes, there were bugs during the Cretaceous period, which lasted from around 145 to 66 million years ago. Insects were diverse and abundant during this time, with many different species thriving in various ecosystems around the world.

Yes, fossils are examples of organic matter because they are the preserved remains or traces of once-living organisms. Fossils can include bones, shells, teeth, and other organic materials that have undergone a process of mineralization or replacement with inorganic materials to become stone-like structures.

During the Permian period, Earth's surface was largely covered by the supercontinent Pangaea. The interior of Pangaea was dominated by vast desert regions, while the coastlines were characterized by shallow seas and coal swamps. The climate was generally hot and dry, with significant fluctuations in temperature and sea levels.

Abundant fossil evidence first appeared in the geologic record during the Cambrian Period, around 541 million years ago. This period is known as the "Cambrian Explosion" because it marked a rapid diversification of marine life and the emergence of many major animal groups.

1. millnniam 100 years 2. age 1000 millnniams 3. epoch 10 ages 4. period 10 epoch 5. era 10 periods 6. eon 5 eras

Scientists use the following four steps to study fossils: 1. Excavation - careful digging to uncover fossils, 2. Preparation - cleaning and preserving fossils, 3. Description - documenting physical characteristics of fossils, and 4. Analysis - using various methods to interpret the fossils' age, environment, and relationships to other organisms.

It's believed that ancient humans, including cavemen, practiced some form of personal hygiene, although the methods would have been simple compared to modern bathing practices. They likely used water from natural sources like rivers or lakes to clean themselves.

Well, it depends on how much detail you want. Carbon-dating is actually very accurate to within a few thousand years. This sounds like a long time to us, but when you are talking about a fossil that is millions of years old, a few thousand years is nothing. Of course, you can't say that a fossil has been in the ground since 1:27pm, Monday 5th June, 34,050,389 BC, but considering the time scales involved, we can date fossils pretty accurately.

This question makes no sense, because there are plenty of transitonal fossils.

So I'm just going to list some.

Cladoselache

tristychius

ctenacanthus

paleospinax

spathobatis

Protospinax

Acanthodians

cheirolepis

mimia

Canobius

Aeduella

Parasemionotus

Oreochima

leptolepis

Osteolepis

Eusthenopteron

Sterropterygion

tiktaalik

panderichthys

Elpistostege

Obruchevichthys

Hynerpeton

Acanthostega

Ichthyostega

Pholidogaster

Pteroplax

Dendrerpeton acadianum

Archegosaurus decheni

Eryops megacephalus

Trematops

Amphibamus lyelli

Doleserpeton annectens

vieraella

Proterogyrinus

Limnosclis

Tseajaia

Solenodonsaurus

Hylonomus

Paleothyris

Captorhinus

Petrolacosaurus

Araeoscelis

Apsisaurus

Claudiosaurus

Planocephalosaurus

Protorosaurus

Prolacerta

Proterosuchus

Hyperodapedon

Trilophosaurus

Coelophysis

Deinonychus

Oviraptor

Lisboasaurus

Archeopteryx

Sinornis

Ambiortus

Hesperornis

Ichthyornis

Paleothyris

Protoclersydrops

Clepsydrops

Archaeothyris

Varanops

Haptodus

Dimetrodon

Sphenacodon

Biarmosuchia

Procynosuchus

Dvinia

Thrinaxodon

Cynognathus

Diademodon

Proelesodon

Probainognathus

Exaeretodon

Oligokyphus

Kayentatherium

Pachygenelus

Diarthrognathus

Adelobasileus

Sinoconodon

Kuehneotherium

Eozostrodon

Morganucodon

Haldanodon

Peramus

Endotherium

Kielantherium

Aegialodon

Steropodon

Vincelestes

Pariadens

Kennalestes

Cimolestes

Procerberus

Gypsonictops

Palaechthon

Purgatorius

Cantius

Pelycodus

Amphipithecus

Pondaungia

Parapithecus

Propliopithecus

Aegyptopithecus

Proconsul

Limnopithecus

Dryopithecus

Pakicetus

Nalacetus

Ichthyolestes

Gandakasia

Ambulocetus

Himalayacetus

Attockicetus

Remingtonocetus

Dalanistes

Kutchicetus

Andrewsiphius

Indocetus

Qaisracetus

Takreacetus

Artiocetus

Babiacetus

Protocetus

Pappocetus

Eocetus

Georgiacetus

Natchitochia

Dorudon

Ancalacetus

Zygorhiza

Saghacetus

Chrysocetus

Gaviacetus

Pontogeneus

Basilosaurus

Basiloterus

Sahelanthropus tchadensis

Orrorin tugenensis

Ardipthecus ramidus

Ardipithecus kadabba

Australopithecus afarensis

Australopithecus africanus

Australopithecus anamensis

Australopithecus garhi

Australopithecus aethiopicus

Australopithecus boisei

Australopithecus robustus

Australopithecus bahreghazali

Homo habilis

Homo rudolfensis

Homo erectus

Just to name a few :)

(I might have spelled one or two incorrectly)

Astronauts were able to conduct experiments in space. The unique microgravity environment allows for studies on various topics such as biology, physics, and materials science that cannot be easily replicated on Earth. Conducting experiments in space provides valuable insights into how different processes and phenomena behave in microgravity conditions.

They develop a cytoplasmic hair-like elongation which increases its surface area for more absorption. It also has a large number of mitochondria which provides energy needed for the active uptake of minerals.

The main reason is that many different organisms went extinct along with the dinosaurs, both on land and in the sea. In all, about 65% of all species on Earth went extinct. Furthermore, many groups of organism disappear from the fossil record very suddenly. This evidence suggests that a cataclysmic event devastated numerous ecosystems around the world.

Nothing at all. Paeleontologists chose a time where significant numbers of hard-shelled animal fossils first appeared in rocks.

It was initially believed that these were evidence of the first life on earth. As such it was decided by stratigraphers that this was a sensible point in time to create a boundary between the pre-cambrian and the newly named eon (which we are still in) - the phanerozoic, which literally means "new life".

Sporoderm is the outermost protective wall around the pollen grain or microspore.

It is made up of many layers. The two main layers are Exine and Intine. Exine is outer while Intine is inner layer of sporoderm.

The sandwich is named after John Montagu, the 4th Earl of Sandwich, who is said to have ordered his food to be served between two slices of bread so he could eat while playing cards. This way of serving food became popular and eventually led to the creation of the sandwich.

There's only one way that they can be formed over millions of years. An animal dies, it soon is compressed with heat/pressure and turns to sediment. The only other way is if you want to make a false fossil. Just use plaster.

Accualy, no. fossils can be formed by....

1. sediment piling on the substance and creating a mold

2. an orginism may be incased in ice, which counts as a fossil

3. mud, bogs, and mucky water may presurve an orginism

4. heat and pressure makes a metamorphic rock, and only sedimentary rock can weild fossils

HOPE I HELPED ^^ IF I DID CHECK OUT JEALOUSNOTAHATER ON YOUTUBE, SUBSCRIBE, RATE, AND COMMENT TOO.

I kept his answer so you could see how wrong he is lol :)

oh, they can also be incased in amber, a sticky substance that ozzes out of trees to protect them from paricites