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navik [9.2K]
2 years ago
8

How would the fossil record look different after the Cambrian Explosion vs. after a mass extinction?

Biology
1 answer:
Aliun [14]2 years ago
3 0
The beginning of the Cambrian Period is marked by the evolution of hard body parts such as calcium carbonate shells. ... These body parts fossilize more easily than soft tissues, and thus the fossil record becomes much more complete after their appearance.
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Most organisms can be divided into two categories - prokaryotes and eukaryotes. What is the main difference between these two ca
Klio2033 [76]

Answer:

The main difference between Prokaryotic and Eukaryotic cell is that, eukaryotes contain membrane bound organelles like nucleus where as prokaryotes do not. The genetic material is present at the center and is called nucleoid in prokaryotes.

Explanation:

Example of prokaryotes include bacteria and archea bacteria. Examples of eukaryotes include plants and animals. Prokaryotes lack organelles such as mitochondria, endoplasmic resticulum and lysosomes which are present in eukaryotes. Both the groups contain ribosomes but its 70s ribosome in prokaryotes and 80s ribosomes in eukaryotes.

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3 years ago
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The science of classifying life is called _______ and its purpose is to organize species into logical grouping based on similar
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Atmosphere.

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3 years ago
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Alekssandra [29.7K]

Answer:

-Sensors in the brain detect a lack of oxygen.

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Explanation:

-Sensors in the brain detect a lack of oxygen.

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<em>The correct answer would be that </em><em>sensors in the brain detect a lack of oxygen</em><em> and t</em><em>he muscles in the body of Jon need more energy and therefore, more oxygen.</em>

At sea level, the atmospheric pressure easily allow oxygen to permeate the cells of the lung and diffuse into the blood. At high altitudes, air pressure is generally lower and permeation/diffusion through the cells of the lung into the blood becomes difficult.

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3 years ago
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By all plants, algae, and some microorganisms
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