Imagine you are the head of a newly formed NASA Interplanetary Paleontology Department! Based on preliminary observations of a nearby planet (listed below), do you expect fossils to be in high or low abundance? Provide three evidence-based arguments to justify your choice, identifying the type of fossil record bias associated with each. Preliminary Observations: Volcanic eruptions and the formation of rift valleys and active subduction zones are regular occurrences on this planet. Algae and many soft-bodied animals are found in the oceans. A few leafy plants and a diversity of insect- and scorpion-like animals dominate the land at low densities. You can make the following assumptions: 1. The planet is of similar age and environmental conditions to Earth 2. Decomposition and other mechanisms relevant for fossilization occur on this planet as they do on Earth 3. Environmental conditions, species diversity, and population abundances in the past remained very similar to what is present now (i.e., the description below)

Imagine you are the head of a newly formed NASA Interplanetary Paleontology Department! Based on preliminary observations of a nearby planet (listed below), do you expect fossils to be in high or low abundance? Provide three evidence-based arguments to justify your choice, identifying the type of fossil record bias associated with each. Preliminary Observations: Volcanic eruptions and the formation of rift valleys and active subduction zones are regular occurrences on this planet. Algae and many soft-bodied animals are found in the oceans. A few leafy plants and a diversity of insect- and scorpion-like animals dominate the land at low densities. You can make the following assumptions: 1. The planet is of similar age and environmental conditions to Earth 2. Decomposition and other mechanisms relevant for fossilization occur on this planet as they do on Earth 3. Environmental conditions, species diversity, and population abundances in the past remained very similar to what is present now (i.e., the description below)

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter18: Introduction To Darwinian Evolution

Section: Chapter Questions

Problem 6TYU: The fossil record (a) usually occurs in sedimentary rock (b) sometimes appears fragmentary (c) is...

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It is known that it takes very long periods of time for new species to develop, and yet the fossil record for many organisms is characterized by long periods of Stasis (no change) followed by short bursts of intense Speciation (the disappearance of one species followed by the appearance of a new species). Thus in the fossil record, organisms seem to stay the same for long periods of time followed by a “sudden” change in the organisms (sudden with respect to evolution and geology). In other words, it appears that new species evolve suddenly as opposed to over long periods of time. The Theory of Punctuated Equilibrium helps to explain these seemingly contradictory occurrences in the fossil record. Discuss how Punctuated Equilibrium works (think about small offshoot populations that break off from the main population) and how it can explain the fossil record evidence. (Be sure to include information about why fossils of the offshoot population would be rare.)
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These (1) are remnants of what was once useful to the ancestors of the species. Furthermore, we can infer from the distribution of related species across the Earth the connections between ancient landmasses. Finally, through (2) evidence found in the DNA, we have observed conserved genes and traceable mutations that tell us the phylogenetic relationships of life on earth.
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