Human population-historical overview, Biology

Assignment Help:

Human Population-Historical Overview

Throughout history, the human population has been quite small. It has grown relatively slowly and even experienced occasional declines. Figure shows the general trend of population growth in the last half million years. As said earlier, the dawn of agriculture, triggered a series of major global environmental changes.

2068_Human Population-Historical Overview.png

Figure: Human Population

As agriculture became more efficient, women began to bear more children and the human population increased. It was possible to grow more food in a given area of land. Hunter-gatherers were mostly nomadic and in their way of life, infants were a liability as children could not become very good hunters. Whereas, in a stationary agricultural society, babies are not much trouble and children can help in the farm. Therefore, the population increase between 10,000 BC and about 1800 AD was largely the result of increasing birth rates that coincided with the growth of agriculture.


Related Discussions:- Human population-historical overview

What will happen without enough insulin, Q. What will happen without enough...

Q. What will happen without enough insulin? Without enough insulin two things can happen. Firstly, the cells of the body will be unable to use the glucose in the blood for ener

What two characteristics unique and different from others, In general compa...

In general compare and contrast the three functional classifications of joints according to movement. What are two characteristics that make synovial joints unique and different fr

Name main parts into which a neuron can be divided, What are the three main...

What are the three main parts into which a neuron can be divided? What are their respective functions? The three mains parts into which a neuron can be didactically separated a

Determine the name of material used for bcc, Determine the name of Material...

Determine the name of Material used for BCC You must be interested to know about type of material you can prepare and some material is available in hospitals and clinics for us

Blood formation, why are blood formed at bones or joints

why are blood formed at bones or joints

What are examples of nematodes, What are examples of nematodes? Ascaris...

What are examples of nematodes? Ascaris, hookworm and filaria, all parasites of humans, are instance of nematodes (also called as roundworms).

Define standard titration for estimation of reducing sugar, Define Standard...

Define Standard Titration for estimation of reducing sugar by Fehling Soxhlet Method? Pipette 5 ml of Fehling's A and 5 ml of Fehling B solution into a 100 ml conical flask. Ad

Coronary prevention, a) The West of Scotland Coronary Prevention Study (WOS...

a) The West of Scotland Coronary Prevention Study (WOSCOPS): The study randomized healthy men between the ages of 45 and 64 years with TC levels higher that 252 mg/dL and LDL chole

What is the difference between osmosis and diffusion, What is the differenc...

What is the difference between osmosis and diffusion? Osmosis is the occurrence of movement of solvent particles (in general, water) from a region of lower solute concentration

Define nervous system and the it's related disorders, Define Nervous System...

Define Nervous System and the it's related disorders? In this unit, we learnt about nervous system and the related disorders, which are termed as 'neurological disorders'. Neur

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd