a)the number of species on Earth or b)the number of individual organisms on Earth
Answer:
population density I hope this helps
Answer: The correct answer is salt.
A compound is a chemical substance which is formed by the combination of two or more elements, joined together in a fixed proportion.
Salt is a chemical compound which is formed by the reaction of an acid with a base. For example- NaCl ( sodium chloride) is a common salt. It is formed by the combination of two elements. Therefore, salt is a compound.
On the contrary, Phosphorous (P), sulfur (S) and Oxygen (O₂) are composed of a single element. Therefore, they are not compounds.
Thus, the correct answer for the compound is Salt
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'Homeo' meaning 'similar' and 'stasis' meaning 'stable.' Therefore, homeostasis means it is the process used by the body to maintain a stable internal environment. Either a negative or positive feedback can be used in homeostasis.
