Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
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.
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.
Define Intra enterocyte transport - non-haem iron absorption? Intra enterocyte transport: In the enterocyte, the absorbed iron can have one of the following metabolic fates:
Q. What is the kind of circulatory system present in annelids? In beings of the phylum Annelida the circulatory system is closed that is blood circulation takes place only with
Nutritive value of crop residues Nutritive value is generally determined by feed composition, intake and utilization efficiency of digested matter. Thus, the value of a feed
Determine in brief about the MSE The MSE deals with questions concerning the addressee's Consciousness, Emotional State, Thought Content and Clarity, Memory, Sensory Perception
Q. What is Polypropylenes? Polypropylenes (PP) (cast PP, Bi-axially oriented PP (BOPP), pearlized PP): Polypropylene is often termed a breathable film. This film is not a
How does the pancreatic juice resume the digestion of carbohydrates? What is the involved enzyme? Carbohydrate digestion starts with the action of the salivary amylase (ptyalin
During chemical synaptic transmission A. neurotransmitter travels via diffusion in extracellular space. B. there will always be release of neurotransmitter from the postsyna
How is energy transferred along a food chain? The energy flux beside a food chain is always unidirectional, from the producers to the decomposers.
Explain the term- PUPIL Pupil is the aperture in centre of the iris diaphragm that regulates entry of light into the eye. Colour of pupil is said to be black. Actu
Define about Traumatic needles Traumatic needles are needles with holes or eyes which are supplied to the hospital separate from their suture thread. The suture must be thread
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!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd