<span>The statement that best describes an independent variable is B. the variable you can change in an investigation. There can be only one independent variable during an experiment, because if you change more things, you won't know which variable it is that brought about the change. So, there is one variable that you change that doesn't depend on anything else and that you can alter in order to get the results you want.</span>
Answer:
5 kelps per square meters
Explanation:
<em>The population density would be </em><em>5 kelps per square meters</em><em>.</em>
The population density for an organism is defined as the total number of the organism living per unit particular area at a specific time.
Mathematically, the population density for an organisms is expressed as:
Number of organisms/Land area
In this case:
Number of kelp = 2000
Area of land = 400 square meters
Hence, population density of kelp = 2000/400
= 5 kelps per square meters
A mathematical model of a food web helps you better understand portions, and track the structure of how the web is flowing. The food web could also help because it helps predict things.
I want to say the answer is the Construction site one
