The outer layer of a cell that acts as a gatekeeper to a cell is the plasma membrane.
The plasma membrane's job is to selectively permit or restrict substances from entering or leaving the cell.
<span>False. Wetlands and Estuaries do require protection as they are easily susceptible to pollution and dumping. Because these lands are difficult to patrol and do not have any commercial use, it is common for unethical parties to use them to either dump wastewater or large amounts of solid trash to try and hide and cut costs. Without legal protection they would quickly be destroyed.</span>
Any trait which has a completely genetic basis with no environmental factors playing any role are traits that are inherited in a completely environmental fashion. There are some traits which are purely genetic and are therefore also determined only through genes. However, the majority of (phenotypical) traits are inherited and determined both by genes and environment.
Stuff like grass and trees. anything that makes its own energy is a producer.
