Answer:
One advantage of models is that all the mice are exactly alike except for color, enabling the control of all variables except the one being studied. Models are also easier to work with than live mice. One disadvantage of using models is that they do not have the same smell and behaviors as real mice.
Another advantage is that models can be reused for the experiment for a longer period of time with less maintenance.
oxygen and air are abiotic
The graph containing r selected species such as rodents and insects will represent a species that has a smaller gestation.
<h3>What is R selected species?</h3>
These type of organisms have a high reproductive rate because of the smaller gestation and maturation period.
They also have smaller number of offspring with little or no paternal care as they are able to take care of themselves.
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Explanation:
it's pretty much a community of any living organism that live and interact with eachother depending on a specific environment
ATP - <span>this is the main energy storage and transfer molecule in the cell.</span>