A proton has a positive charge and is in the nucleus.
The potential ecological niche of an organism is its fundamental niche, while the niche an organism actually occupies is its realized niche.
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What is called Ecological Niche?</h3>
Ecology uses the term "niche" to describe a species' role in a community. A species' niche is defined by the physical, environmental, and interactions with other species requirements (such as temperature or topography) (like predation or competition) Ecology defines a niche as the compatibility of a species with a certain environmental circumstance. It explains how an organism or population reacts to the distribution of resources and rivals (for instance, by expanding when resources are abundant and shrinking when predators, parasites, and pathogens are scarce), as well as how it changes those same factors.
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This observation can be explained by the theory of endosymbiosis. From what scientists have discovered, it can be explained that the double membrane of both chloroplast and mitochondria are as a result of them been subjected to phagocytosis but they were not digested. Their DNA suggest that they were once free living prokaryotes. This agree with the endosymbiosis theory which states that eukaryotic cell organelles developed from prokaryotic cells.
Answer:
the answer is vertebral bones
Explanation:
the vertebral bones surrounded our spinal cord and our skull acts as an internal crash helmet to protect our brain
