Answer:
A(n) ____ is an approximate representation or simulation of a system?
A(n) <em><u>Model</u></em>____ is an approximate representation or simulation of a system.
xXxAnimexXx
have a great day!
Oxygen and silicon make up most of earths crust
Something very useful and widely used from a volcano is the Basalt fibre because it has the advantage of good combination properties. It is aplied in fire-fighting, environment protection, aviation, the arms industry, atomobile and plastics and even in the construction industry
Plant like Protists - also called algae - autotrophs
<span>Fungus like Protists - heterotrophs, decomposers, external digestion </span>
<span>From the above their role in the aquatic food chain is clear . </span>
<span>They perform their role as </span>
<span>1) producers = example = Plant like Protists - also called algae - autotrophs </span>
<span>2 ) consumers = example =Animal like Protists - also called protozoa (means "first animal") - heterotrophs </span>
<span>and </span>
<span>3) Decomosers = example ==Fungus like Protists - heterotrophs, decomposers, external digestion
</span>
Both plant and animal cells have membranes so whatever chemical reactions they have going inside the cell, it is regulated and maintained. Membranes help separate the internal environment from the external environment.
Hope this helps - I'm currently in cell biology so this question is interesting
