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Paleontology
Paleontology is the study of prehistoric life and an organism's interaction with other organisms and the environment. It is a science that attempts to explain causes, rather than to conduct experiments to observe effects, and is often based on fossil evidence. Questions here have to do with anything that pertains to paleontology.
3,044 Questions
How is the law of superposition is used to date fossils?
Superposition is the methodology of younger sediments being deposited over older rocks. Paleontologists can determine the evolution or extinction of a species by looking at what fossils are either present or absent in a particular sedimentary layer.
What are the conditions that favor fossil formation?
The plant or animal must be encased in a substance that prevents destruction or erosion. Ice, tar, or layers of mud or clay can isolate the remains from sunlight, air, and consumption by other lifeforms. Over time, a mineralized form or a rock cast will result in a fossil or fossil imprint.
Have neanderthals been found in more than 10 new world sites?
No, Neanderthals have not been found in the New World. Neanderthals were primarily distributed in Eurasia, while the New World was populated by other early human species like Homo sapiens and their ancestors.
What event marks the beginning of the Cambrian period?
The beginning of the Cambrian period is marked by the Cambrian Explosion, a rapid diversification of life forms that occurred around 541 million years ago. This event led to the sudden appearance of a wide variety of complex multicellular organisms in the fossil record, setting the stage for the subsequent evolution of life on Earth.
What are the theories that caused mass extinctions?
loss of habitat (change of habitat, turns too cold, too hot, too dry, too wet, ect)
loss of food (where we lose almost all plants and the in tire food chain collapses. along with us)
disease (self explanatory)
freezing (earth freezes over into another ice age)
flooding (after ice age effect the ice melts)
comets (the ash covers sun and kills plants. Same thing with loss of food except the ash can also possibly choke us)
super volcanoes (the ash covers sun and kills plants. Same thing with loss of food except the ash can also possibly choke us)
another animal claims the top of the food chain (mostly sci-fi)
What are 4 ways the atmosphere effects life on Earth?
The atmosphere of planet Earth is a key factor behind the existence of life, and human survival. Layers such as ozone helps shield against ultraviolet (UV) radiation. The percent composition of oxygen also serves as critical to breathing. Lastly the natural greenhouse effect caused by the atmosphere has helped keep temperatures habitable.
Gases pass in and out of a leaf through the?
These "holes" are called the stomata. Carbon dioxide enters through the stomata, and through the process of photosynthesis, this carbon dioxide is changed to oxygen and then released through the stomata
Where on the map is the likely location of the outwash plain?
An outwash plain is typically found at the terminus of a glacier and can be located downstream from the glacier in areas like river valleys or plains. This landform is characterized by sediment deposits carried and deposited by glacial meltwater.
The Silurian period occurred from 443 million years ago until 416 million years ago. It saw the emergence of animals such as coral and fish that began quickly populating the oceans, and plants like the fern first appeared on the planet.
Many answers exist on the internet. And many references. Of course the easy answer is
a crystal formed from organic molecules. It seems that there are many interesting property's shown by these crystals.
How do you speed up the petrification process?
To speed up the petrification process, you can increase the temperature and pressure of the environment where petrification is taking place. Enhancing the mineral content of the surrounding solution can also accelerate the petrification. Additionally, exposing the object to catalysts or enzymes that promote mineral deposition can help speed up the petrification process.
What energy is received from the sun?
The sun emits solar energy in the form of light and heat. This energy is captured by Earth and is essential for supporting life on our planet through processes like photosynthesis and driving weather patterns.
What is the difference between staying and living?
Staying only means staying in a certain places during certain times of the day, like sleeping in a hotel, being in school etc. Living means doing things in a certain place. You sleep, eat, interact and live in a place. This is usually places like your home.
What huge things form on Earth's surface?
Mountains, canyons, and volcanoes are some examples of huge geological formations that form on Earth's surface due to processes like tectonic activity, erosion, and volcanic eruptions. These features play a crucial role in shaping the landscape and influencing ecosystems around the world.
What specific task will paleontology involve?
It actually depends on what type. If you want to be a paleozooologist for example you need to learn paleontology(if any), geology earth sciences, zooology, physics, and chemistry and if ou want to be a micropaleontologist you would need to learn paleontology, geology, earth sciences, microbiology, physics, and chemistry and telescopes
What is a hardened and preserved foot print an example of?
A hardened and preserved footprint is an example of a fossilized trace fossil. Trace fossils are marks or imprints left behind by ancient organisms, providing insights into their behaviors and interactions with their environment.
Some people like to think about how the world was created because they like to know why they are there. They also want to think about this so they know why everything is it is, and some think it is because humans are inquisitive creatures. A vast majority of people think it was just by chance that we came into existence making them question how we are here leading them to the conclusion that a big bang occurred.
AnswerThe earth is only one of a great many planets that have been created over time in our universe. Planets generally differ from most stars, not only in size and age, but in composition. Whereas most stars consist of light elements such as hydrogen and helium, planets generally consist mainly of heavy elements.Our planet, the earth, was created after a nearby star exploded as a supernova, at the end of its life. The resulting gases contained a high proportion of heavy elements, essential for a planet such as the earth. Some of these gases were captured in an accretion disc around the sun. Gradually, this consolidated into a number of hot gaseous spheres, which cooled into the planets we know today.
So, the earth was created because a supernova explosion took place in our neighbourhood, allowing the sun to capture
Does and organism have to be buried to become a fossil?
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.
Evidence for the history of changing life forms on earth is most often found in?
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.
If an entire organism dissolves away the resulting cavity is?
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.
Why is the Cambrian Period called the Cambrian Explosion?
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.
What is a description of the Sporoderm Stratification?
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.
What happened at the end of the Mesozoic era but did not happen at the end of the Paleozoic era?
There were major asteroid impacts.
Which eras ended with a mass extinction?
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.
