The way that you could use molecular biology to determine whether these birds have evolved from a shared common ancestor is to take a look at their proteins, RNA, and DNA. Because the more similar these things are in the two types of birds, the more possible it is that they are somewhat connected via a common ancestor.
Answer:
<h2> "Archaea are older organisms than eukaryotes"
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Explanation:</h2>
Archean are group of organisms classified under the domain Archae bacteria. They are found in environments with extreme conditions e.g.
high temperature etc.
They are prokaryotic in nature i.e. they do not possess a membrane-bound nucleus in their cells.
Based on this, archaea are not classified under the same domain as bacteria (domain- protista). They are unicellular organism, archaea are older set of organisms than eukaryotes.
Answer:
Through different studies scientist have quantified the amount of energy that moves to the next trophic level. Most of the energy is used for metabolic processes and released as heat to the environment.
The amount of energy left for the next level is around 10%, if a herbivore takes 1,OOO Kilojoules the energy left for the next level would be around 100 Kilojoules, this explains why you cannot find a food chain with more than 7-8 levels (ocean) on land is usually between 4-6 levels.
