Both dollar system and meter are similar due to their usage as a standard around the world.
The dollar system is similar to a meter in the SI system because in the trade between international countries is done in the currency of dollars all over the world just like meter which is used all over the world for the measurement of length.
Both dollar and meter act as the standard with which their respective things are compared. Dollar is used as international currency whereas meter is used as international tool for the measurement of length.
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You start by answering the first question on the list which tells you what to do from there. Pretend your animal was a bird, you might have a key like this:
Does this animal have wings?
yes go to question 2
no go to question 6
Then you just continue until the list doesn't say to do anything else. i.e.:
Is the animal feathered?
yes bird
no go to question 4
Antibiotics are ineffective against viruses because viruses do not have cells. Viruses are infectious agents that live within the cells of other living things. Antibiotics work by breaking down the cell walls of bacteria or interfering with the bacteria's ability to repair its cell's DNA, according to How Stuff Works
It is supported by evidence from a wide variety of scientific disciplines, including genetics, which shows that different species have similarities in their DNA. There is also evidence supporting the Theory of Evolution in paleontology and geology.
Answer: The producers are the bluegrass. Adding a limiting nutrient to the grass would increase the amount of primary productivity. The result would be an increased amount of biomass at the producer level, and increasing biomass and available energy at each successive level. The number of birds could increase, because there would be more for them to eat.
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