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Why do energy and biomass decrease at successive stages of the foodchain?

Energy is transferred throughout the food chain as animals at lower trophic levels are consumed by those at higher trophic levels. In every living organism, energy is taken in as food. But when one org...

Answered by Katie H. • Biology tutor

59850 Views

How can I figure out the gender of a word in Italian?

The basics

Italian is fairly simple when it comes to gender, but there are a few occasions when a new noun can trip you up. Here are some basic rules to keep in mind:

Answered by Raphael T. • Italian tutor

26625 Views

How do we develop immunity?

Immunity is the ability for the body to respond to familiar pathogens so quickly that they are not able to cause a physical disease, meaning we can be infected for a short period of time, and not notic...

Answered by Chidera O. • Biology tutor

7720 Views

How do I use Pythagorus' Theorum?

Pythagorus' Theorum is used to calculate the lengths of the sides of a right angled triange, and is written mathematically as follows:

a² + b² = c²

Answered by Narissa P. • Maths tutor

7063 Views

What is the difference between slow twitch and fast twitch muscle fibres?

Slow oxidative fibres are designed for aerobic endurance exercise. They use oxygen to work at a moderate rate over a long period. They are red due to the high c...

Answered by Olivia S. • Physical Education tutor

11566 Views