The statement that due to fluctuations in worldwide fertility and mortality rates, human population forecasts are prone to change is true.
<h3>What is the human population?</h3>
The total number of humans in the world is known as the human population.
The current human population is 7.9 billion.
The human population is increasing day by day, due to overpopulation, the resources are decreasing and pollution is increasing.
The study of the human population is called demography.
Thus, the given statement is true.
Learn more about the human population
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Answer:
By looking for amino acid sequence differences between species, scientists can infer how closely or distantly related two species are in evolutionary time.
Explanation:
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Answer:
g/m2
Explanation:
Biomass is the constant dry mass of organisms at a particular trophic level. In a stable ecosystem, the biomass decreases at each successive trophic level of the food chain. A diagrammatic representation of biomass in each trophic level in a food chain gives a pyramid of biomass.
g/m2 is the unit used in a pyramid of biomass. Kilocalories is Unit of measure for energy pyramids. The number of organisms in each trophic level gives a similar pyramid called pyramid of numbers.
- Spring tides happen 2 times each month at the new and full moon phases.
- Neap tides happen 2 times each month at the first and third quarter moon phases.
<h3>What is a Tide?</h3>
This is defined as the alternate rising and falling of the sea, usually twice in each lunar day at a particular place, due to the attraction of the moon
and sun.
The Spring tides occur during new and full moon phases while the Neap tides occur during the first and third quarter moon phases.
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