It is the heterotrophic equivalent of net primary production by autotrophs. Taken to its extreme, secondary production ... Most energy flow diagrams in textbooks show production flowing from ...

All industry is made up of four sectors that are a linked together like a chain: primary, secondary, tertiary and quaternary industry. Industries in the primary and secondary sectors are the ...

Primary agricultural goods are untreated products which come directly from nature or from the primary sector. Secondary agricultural goods are treated products and preparations from primary ...

Whether they are making circuits, discovering how plants grow or learning how gravity works, our new primary and lower secondary resources help your learners develop critical thinking, communication ...

However, unless you're an investor looking to purchase an MBS, you won't deal with the secondary market. Instead, you'll deal with a bank or broker in the primary mortgage market. The secondary ...

Moving from primary school to secondary school is an exciting time of life, but for many children it can also be a daunting prospect. A new, much bigger school can offer greater independence ...

How do you feel about automated vehicles? What effects do you think they will have on your generation? Read this article and post your comments and questions for Matt Richtel by Nov. 14. By The ...

The result of this is that even as the primary side is kept well below the saturation point where efficiency plummets, the secondary side is kept within this saturation region, enabling a very ...

Asthma is the most common chronic disease of childhood and, in the latter part of the 20th century, reached epidemic proportions. Asthma is generally believed to result from gene-environment ...

The education system is divided into three main successive stages: primary education (kindergarten and elementary school), secondary education (middle school, high school, and some specific ...

What's the best air fryer to buy? The air fryer is a relatively new addition to the world of appliances, and in my eyes, it's a magical countertop appliance. Whether you're an expert home chef or ...

Whether they are making a house with 3D shapes, learning how to gather data or discovering sequences, our new primary and lower secondary resources help your learners develop critical thinking, ...