Covalent because electrons are shared
There's an excess of Phosphorus in soil, the plants consume it, then the primary consumers consume multiple plants, and have a higher level of phosphorus concentration in them. Then secondary consumers consume multiple primary consumers and the phosphorus from all the things they ate are concentrated in them, and so on. Basically, even though as energy is passed along the food chain, it lessens with each trophic level, nutrients become more concentrated and the highest trophic level has the highest concentration because of how many organisms were consumed.
The answer is false. Hope this helps!
Answer:
It is also referred to as the phospholipid bilayer or the plasma membrane, It helps cells maintain homeostasis, It is selectively permeable; that is allows some substances through but not others
Explanation:
a. I don't know how to explain other names for the cell membrane but they are it, as the cell membrane is a bilayer composed of phopholipids and it is also called a plasma membrane
b. The cell membrane has many structures on it that facilitate nutrient transport in and out of the cell (ex: protein pump). nutrients of higher concentrations would like to move through lower concentrations, and it achieves this by moving across the cell membrane in or out of the cell, maintaining homeostasis
c. Some substances such as NaOH use pumps on the cell to move in or out of it, it can't get in or out without using pumps since they are so big, so the cell can choose when the cell wants it's nutrients or if it dosen't
