List three factors that will affect the future of the biosphere.
It increases the surface of the intestine so that nutrients' diffusion is more efficient
Answer:The world population increased from 1 billion in 1800 to 7.7 billion today. The world population growth rate declined from 2.2% per year 50 years ago to 1.05% per year. Other relevant research: ... We show how the world population grew over the last several thousand years and we explain what has been driving this change.
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The human liver weighs 1.5 kg