POSSIBLE POINTS: 5 The sodium-potassium pump is involved in active transport that moves 3 sodium ions from the cell for every 2 potassium ions it moves into the cell. Which of these best explains why energy is needed for active transport? lons are being moved against the concentration gradient. lons are attached to small particles. lons are trapped inside the cell membrane. lons are negatively charged.

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consuming the right balance of protein, carbohydrates and fat can you maintain a healthy weight and optimize your energy levels. protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.

im not in connections yet but i might can you some questions. what grade are you in?

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )

well first you need the sample of the temperature and gas level. i couldnt write a hypothesis unless i had some data. i think temperature changes will effect volumes of gas because gas changed into a solid or liquid at specific temperatures.