The rigidity (structure and support) of a plant cell is due to primarily to the presence of thea. dna b. lysosome c. cell wall

The negative change found inside the plasma membrane is created by potassium ions sodium ions hydrogen ions chlorine ions

What is the difference between a meteoroid and a meteor?

You and a group of friends are spending your vacation hiking through the mountains. it is cold in the mountains. you will be expending a lot of energy while hiking and you will need plenty of energy to keep you warm. you should pack foods high in to provide the most energy or kilocalories per gram of food. a) carbohydrates b) lipids (fats) c) proteins d) sugars