Paleontology

No, an organism does not have to be buried to become a fossil. Fossils can form through a variety of processes, such as compression, mineral replacement, or petrification, which can occur even without burial.

The evidence for the history of changing life forms on Earth is most often found in the fossil record. Fossils are the preserved remains or traces of ancient organisms that provide important information about the evolution of life over time. The study of fossils helps scientists understand how different species have evolved and diversified throughout Earth's history.

The resulting cavity is typically referred to as a cast or mold, depending on whether the dissolved organism was filled with sediment (mold) or left an empty space (cast). These cavities are important for understanding fossilization processes and can preserve the morphology of the original organism.

Possible answers:

A) where nitrogen-fixing bacteria are abundant.

B) that has soil with poor drainage.

C) that has hot summers and cold winters.

D) in which the soil is relatively deficient in phosphorus.

E) in which the soil is relatively deficient in nitrogen.

The Cambrian Period is called the Cambrian Explosion because it is characterized by a sudden increase in the diversity of multicellular life forms, including the appearance of many major groups of organisms. This period saw the rapid evolution and proliferation of complex marine life forms, marking a significant point in the history of life on Earth.

Sporoderm stratification refers to the layering of the sporoderm, which is the outer layer of a pollen grain or spore. This stratification can consist of different layers with distinct compositions and functions, such as protecting the genetic material inside the pollen grain or aiding in dispersal. The structure and composition of sporoderm layers can vary among different plant species.

There were major asteroid impacts.

Two major eras that ended with mass extinctions are the Permian-Triassic extinction event, which marked the end of the Permian period, and the Cretaceous-Paleogene extinction event, which marked the end of the Cretaceous period. These events had profound impacts on life on Earth, leading to the loss of a significant number of species.

The fishing industry is dependent upon the productive waters of an upwelling area. Upwelling brings nutrient-rich waters to the surface, supporting the growth of phytoplankton and leading to a rich ecosystem that sustains various marine species that are important for commercial fishing.

There is evidence to suggest that volcanic activity during the Mesozoic era released high levels of toxic gases like sulfur dioxide and carbon dioxide. These gases could have had environmental impacts, but it's unclear how widespread and severe their effects were on ecosystems during this time.

Bird skeletons are lightweight and delicate, making them less likely to fossilize. Additionally, birds tend to live in habitats that are not conducive to fossil preservation, such as forests or open water. Reptiles and mammals, on the other hand, often live in environments more suitable for fossilization, such as deserts or savannahs.

Two-thirds of all terrestrial life disappeared in the last mass extinction approximately 252 million years ago during the Permian-Triassic extinction event, also known as the "Great Dying." This event had drastic impacts on life on Earth, resulting in the loss of a vast number of species, including significant plant and animal groups.

Paleontologists use concepts like fossilization, stratigraphy, evolution, and extinction to study ancient life forms. They rely on these concepts to interpret the fossil record and reconstruct the history of life on Earth. By understanding these key concepts, paleontologists can make inferences about past environments, biodiversity, and the relationships among different species.

The term for this process is "extrude." It involves pushing a material through a confined space to shape or form it, often used in baking, manufacturing, or 3D printing processes.

Relative dating provides an estimate of the age of a layer or fossil in relation to other layers or fossils. It does not provide an exact age in years, but instead helps determine whether something is older or younger than something else based on the order in which they are found.

The end of the Mesozoic Era is marked by the mass extinction event that wiped out the dinosaurs, known as the Cretaceous–Paleogene extinction event. This event was likely caused by a combination of factors, including a meteorite impact and volcanic activity, and led to significant changes in Earth's ecosystems.

This all depends; Paleontologists are usually in an office, or, they are out doing field work. If they are in an office this could also mean in a classroom, seeing a lot of paleontologists work as university professors.

During the Permian extinction, numerous species went extinct, including nearly 96% of marine species and around 70% of terrestrial vertebrate species. Some of the affected groups were trilobites, blastoids, amphibians, and early synapsids.

An axiom is a statement that is accepted as true without needing proof. It serves as a basic assumption in a system of logic or mathematics and is used to derive other statements.

No. Trilobytes are the oldest fossils ever found. They are the reason the theory of evolution is still only a theory. They were complex organisms with all the basic organs, complex eyes and a respitory sytem. If evolution is true, why for over two centuries have no fossils been found leading up to their evolutionary "place."

Scientists look at the teeth of fossils of our earlier ancestors and can see that they were omnivorous, just like modern humans. They have also found evidence of fossilised bones that were scraped with bone knives to remove the meat, something that only people could have done.

Life on Earth goes back some 500 million of the 4-5 thousand-million years of the planet's own existence as far as can be ascertained, but humans have been around for less than one million, though our nearer primate ancestors go back perhaps 4 million. So the ages of the scraped bones would be tens or hundreds of thousands of years.

this is the Doppler effect where sound waves are compressed in front of a moving object and exapnded behind it. Thus the pitch appears higher as an object approaches than when it receeds. At just below Mach 1, the sound wave is compressed to twice the frequency so the Doppler shift would be almost 2 octaves (factor of 4 between compresson and expansion) as the object passed.

The particles would stay on the side of the bank and be known as a runoff.

footprint

Amphibians diversified rapidly during the late Paleozoic due to environmental changes, such as the expansion of terrestrial habitats and development of new ecological niches. This allowed for adaptive radiation, where species diversified to occupy various habitats and exploit different resources. Additionally, the evolution of specialized features like extra-ocular muscles and better hearing contributed to their success.