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Why is there a gap of time between the evolution of algae and trilobites?
There isn't, of course, a gap in time. There are, however, very few fossils intermediate between simple stromatolites (the first more or less multicellular organisms) and the first complex organisms found just before the Cambrian Explosion. This gap most likely exists because while predation already existed (organisms consuming other organisms), no organisms had yet developed an internal or external skeleton that could have been preserved at death. The very few organisms from that era that were preserved despite of this, were preserved in the form of molds and casts.
Is it well-preserved or well preserved?
It's "well-preserved".
What are remains of organisms in tar amber or ice?
A. carbonaceous filmsB.molds and castsC.petrified remainsD.original fossil remains
What are five ways organisms can be preserved as a fossil?
Successful fossilization or preservation of an organism can occur in several ways: (1) preservation without change; (2) complete replacement by a mineral; (3) filling in of a hollow space by a mineral; (4) formation of a thin film of carbon; and (5) formation of an imprint or the filling in of an imprint.
What best describes fossil?
Fossils (from Latin fossus, literally "having been dug up") are the preserved remains or traces of animals, plants, and other organisms from the remote past. The totality of fossils, both discovered and undiscovered, and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record. Fossil are bones of extinct creatures that are said to live thousands of years ago. A fossil is the ancient remains of animals, plants and other organisms from the distant past. The word is from a Latin word 'fossus' which means 'dug up'.
Why are their so many well preserved fossils?
its safe and its well preserved The organisms were buried quickly.
A trace of living organisms preserved in a rock?
Is a fossil.
Which organisms have the best chance to be preserved?
fossilized shell
List three substances other that than sediments in which organisms can be preserved?
Amber: Organisms can become trapped and preserved in fossilized tree resin called amber. Ice: Organisms can be preserved in ice if they become frozen quickly, such as in glaciers or ice sheets. Tar: Certain organisms can be preserved in natural asphalt deposits, known as tar pits, where their remains are partially buried and protected from decomposition.
What are Traces of naturally preserved organisms is?
fishingthey are called fossils.
What is is the preserved remains or traces of an organisms that lived in the past?
fossil.
Remains or traces of organisms preserved in a rock are called what?
fossils
What are the ways that the remains of organisms have been preserved?
amber, tar and ice
Which organisms have the best chance of being preserved?
Organisms with hard parts like shells, bones, or exoskeletons have the best chance of being preserved as fossils. This is because these hard parts are more likely to withstand the processes of fossilization and degradation. Additionally, organisms that lived in environments conducive to fossilization, such as sediments or tar pits, also have a better chance of being preserved.
What are the three ways that the remains of organisms have been preserved?
amber, tar and ice
What are three ways the remains of organisms have been preserved?
amber, tar and ice
What are three ways that the remains organisms have been preserved?
amber, tar and ice
