If there are more secondary consumers than primary consumers present in an ecosystem, there is an imbalance in the ecosystem.
<h3>WHAT IS FOOD CHAIN?</h3>
Food chain is a linear relationship between series of organisms in an ecosystem that shows how they feed on one another.
In a typical food chain, the order of feeding relationship is as follows:
producer - primary consumer - secondary consumer - tertiary consumer
Producers should be more in number than primary consumers and so on. Therefore, if there are more secondary consumers than primary consumers present in an ecosystem, there is an imbalance in the ecosystem.
Learn more about food chain at: brainly.com/question/9162964
The myelination of axons or the presence of the myelin sheath regulates the conduction velocity of the nerve impulses by acting as an insulator to the nerve fibers. The spaces or gaps between each myelin sheath are called the nodes of Ranvier and the impulse go from one node to another. This phenomenon is called saltatory conduction.
Nice to know: The myelin sheath in the central nervous system is provided by cells called oligodendrocytes. On the other hand, the myelin sheath in the peripheral nervous system is provided by cells called the Schwann cells.
The answer is: "differences in temperature and salinity" .
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(based on the assumption that we are referring to the world's ocean).
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