All of the following statements about the pyramid of biomass are correct EXCEPT: a. Biomass is the total dry mass of the organis
ms presentb. The base of the pyramid generally represents primary consumersc The amount of biomass at a particular level of the pyramid depends on the amount of energy availabled. Certain toxins tend to become concentrated at the upper levels of the pyramide. Biomass pyramids tend to vary for different ecosystems.
The correct answer is B. The base of the pyramid generally represents primary consumers.
Explanation
A biomass pyramid is a graphic representation of the biomass present in a unit area of various trophic levels, this graphic representation shows the relationship between biomass and the trophic level that quantifies the biomass available at each trophic level of an energy community at a specific time. In general, an ecosystem is represented in a pyramid in which the primary producers occupy the base of the pyramid because they have more biomass in a unitary area. An example of the organization of a biomass pyramid is an ecosystem in which caterpillars feed on oak trees; In turn, the caterpillars are consumed by a bluebird, which is consumed by a sparrowhawk. In this example, the oak tree is at the base of the biomass pyramid, because it feeds dozens of caterpillars, thanks to its massive biomass, and the sparrowhawk occupies the highest level of the pyramid. Therefore, it is incorrect to affirm that the base of the pyramid generally represents primary consumers, because the primary producers are generally at the base of the pyramid. So, the correct answer is B. The base of the pyramid generally represents primary consumers.
The base of the pyramid represents primary producers since they help to pass on energy to consumers as we go higher in the pyramid. They are not consumers because they supply energy and do not use up energy. They are called autotrophs.
All the elements of a period have similar chemical properties because they have the same number of valence electrons in their outermost shell. Their atoms have the same number of electrons in the highest occupied energy level
The left and right ends would be indicated when x is changed to -x. When this is substituted, the change is indicated by the first term because only the degree of first term is odd.
Let the left hand side be donated by -x.
Then,
Hence, the correct option is the degree of the first term indicates the left and right end points of the function.
Gravitational potential energy can be given by the equation PE = mgh where m is the mass, g is the gravitational constant 9.81 or 10 depending on rounding and h is the height
well weight is a force equiavlent to W= m*g
so comparing that to the potential energy equation, divide the potential energy by the height and you will get weight in Newtons
Density is an important physical property of matter. It reflects how closely packed the particles of matter are. When particles are packed together more tightly, matter has greater density.
