The DNA sequence of gene molecules show similarities and differences which can be used to determine species' relatedness.
Unnecessary health care (overutilization<span>, overuse, or overtreatment) is healthcare provided with a higher volume or cost than is appropriate.
thats what i got xD - VAL
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Answer:
saprophyte
Explanation:
The sporophyte stage is the predominant phase in ferns. They have specialized water and nutrients conducting tissues called xylem and phloem that differentiates them from mosses. ... The sporophyte obtains its nutrition from the dead and decaying organic matter
Answer
Complex barrier to the flow of substances out of the cells,and restrictions to inflow of unwanted substances into the cells. The hydrophobic and hydrophilic nature of the cell membrane controls the entry of substances from the extracellular medium into the intracellualr. In addition the polarity restricts certain substance movement across the walls.
Serve as the selective channels for the influx of certain substances into the cells, and the out flux of wastes.This is through ion channels for the movements of ions across.
Provide insulation to the cells,to maintain the constant internal temperature,this is through the presence of lipids as( Phospholipids and cholesterol).The latter prevent the clogging of the lipids in the cell membrane therefore preventing frozen up of the cell membrane,providing insulation.
Separation of metabolic process in the cell.
Explanation:
Cell membrane-This is present in all cells.But the variation of its constituents makes it unique to each cell. Although it performs the same role, the location and role the cells it bounded, reflects its constituents, it is made up of lipids, carbohydrate, protein and cholesterol
