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How many edges does a octagon base pyramid have?
16. The base has eight around it and there are eight more connecting the vertices of the base to the apex of the pyramid.
What do you call a shape with 4 faces and a base?
a pyramid as long as there is only one base more specifically a rectangular pyramid
How can you turn pyramid to a octahedron?
If the pyramid has a triangular sides then truncate each vertex (cut off a small pyramid shape from the vertices).If the pyramid has a quadrilateral base then truncate 3 vertices.If the pyramid has a pentagonal base then truncate 2 vertices.If the pyramid has a hexagonal base then truncate 1 vertex.If the pyramid has a heptagonal base then it is already an octahedron.If the pyramid has an base with 8 or more vertices then slice off the section formed by joining the apex and two vertices from the base which are six apart. This makes the base heptagonal and therefore the shape is an octahedron.
Why are there few organisms at the top of the pyramid?
In a stable ecoystem, there should always be more producers than carnivores. For one, there has to be more energy, because your energy flow has to reach the top of the pyramid through your primary, secondary, etc. consumers. There has to be more at the bottom because the organisms at the upper levels have to have a food source. How would the jungle look if there were 100 tigers and only 1 plant?
How many more vertices does a square pyramid have than a triangle pyramid?
1 A square pyramid has 1 at the top and 4 round the base, a total of 5. A triangular pyramid has 1 at the top and 3 round the base, a total of 4. The square pyramid has 5 - 4 = 1 extra vertex (round its base).
How an energy pyramid and a food chain are the same and different?
A food chain shows food energy moving from organism to organism. A pyramid ofnumbers show how many organisms were involved in each level of food chain. Food chains always begin with the sun as the source of energy and the pyramid of numbers always has the producer as the base. Pyramid of numbers have more producers at the bottom than consumers at the top.The similarities are that they both are models and they both have the same organisms. They both have top consumers and they both show how energy is passed down from organism to organism.
How are a food pyramid and a food chain different?
A food chain is more relative. A food pyramid is more empirical. The food pyramid is more useful in determining food groups and needs.
What happens to the relative number of organisms as you move up an ecological pyramid?
As you more up the ecological pyramid, the relative number of organisms present decreases. This means there will be more organisms at the bottom of the pyramid than at the top! At every increasing trophic level (ie primary to secondary to tertiary, etc.), the relative number of organisms will be less as you move up the ecological pyramid! Hope that helps :) Gayyy
What statement describes a pyramid of energy?
There are always more prey organisms than producers in a community. Murshedur Rahman
What is the difference between new food pyramid and old food pyramid?
old pyramid has more granis
What does a biomass pyramid present?
Biomass - the total dry weight of the organisms in a trophic levelBiomass Pyramid - a diagram showing the biomass at each trophic level of a food chainA pyramid of biomass shows energy lost in each trophic level while a pyramid of numbers shows the numbers of the organisms in each trophic level
What are some differences between a pyramid and cone?
A cone has a round base and a pyramid has a base with 3 or more angles.
How many edges does a octagon base pyramid have?
16. The base has eight around it and there are eight more connecting the vertices of the base to the apex of the pyramid.
What do you call a shape with 4 faces and a base?
a pyramid as long as there is only one base more specifically a rectangular pyramid
Why are the numbers of organisms smaller at high levels of an energy pyramid?
The energy pyramid shows how the amount of useful energy, food, decreases as organisms in that level use it. Even though a lot of energy may be taken in at any level, more energy in the form of food that is available to the next level, is stored on the bottom level and decreases at each level as you move to the top of the pyramid. Thus, there is much less energy to support organisms at the top, so there are fewer in most communities.
Why are there usually fewer organisms at the top of an energy pyramid?
The energy pyramid has a broad base to support the next level of organisms, then gets narrower as each layer is added. Each upper level eats more than one ie many organism from the layer below it. Therefore, there has to be more organisms and more energy trapped in lower layers to give energy to the upper layer. There is more grass than rabbits, there are more rabbits than hawks. There is more energy in the grass layer than the layers above it.
Why do we need more plants than animals in the food pyramid?
We need more plants than animals in the food pyramid so there is enough food and air to support them
