Food webs also demonstrate his level of competition within organisms. For
example the mouse, grasshopper and the rabbit are all competing for the
grass, if one organism eats more then there is less for the others.
Animals and plants also compete for water, space and habitats in order to
survive In a food web, changes in a population of certain organisms can
impact the rest of the food web. A major example is if the population of grass
dramatically decreased, that would mean less food for the primary consumers
and thus the population of the primary consumers will decrease and this will
affect the secondary consumers and the tertiary consumers also. This process
is known as interdependence.
| Are you still struggling?|
Our expert online math tutors will help you child understand the key.
Concepts and ideas of expressions and formula so if you are searching for:
> 8th Grade Online Math Help
> 8th Grade Math Problems
> 8th Grade Math Practice
> 8th Grade Formulae and Expressions help
> 8th Grade Formulae and Expressions Problems
> 8th Grade Formulae and Expressions Practice Problems
> 8th Grade Math Help Online
> 8th Grade Math tutor
Pyramids of number
The pyramid of numbers highlights how many organisms are present at each
level. Each level is called a trophic level. As we move up each trophic level
the energy is lost. Energy is lost to the surroundings in a number of ways.
The most common way of energy loss is through movement.
As organisms move they consume energy and therefore less is passed on.
Also as organisms respire energy is lost to the environment in the form of
The pyramid illustrates how there is a lot of grass and it is eaten by many
grasshoppers. There are less snakes but they eat more grasshoppers and
the same applies to the eagles.
However all pyramids are not symmetrical and can come in other shapes.
Tutor, Student, Parent & Life Blog
How to Study Help