Answer:
http://mairscience.weebly.com/uploads/5/7/8/8/57880837/8th_grade_key_2015_sol_released_test.pdf
Explanation:
Well those that are in that ecostems could died from no water or the could walk on it and it breaks
The cell membrane<span> is selectively permeable to ions and organic molecules and controls the movement of substances in and out of </span>cells<span>. The basic </span>function of the cell membrane<span> is to protect the </span>cell<span> from its surroundings. It consists of the phospholipid bilayer with embedded proteins.</span>
It's depends on the size of molecule. big ones cannot pass the membrane while smaller molecules can.
Answer: D
Explain:
For example, an unopened soda in a bottle has a uniform composition and is a homogeneous mixture. Once you open the bottle, bubbles appear in the liquid. The bubbles from carbonation are gasses, while the majority of the soda is liquid. An opened can of soda is an example of a heterogeneous mixture.
