C) K ( potassium)
Explanation:
Small non-charged molecules like CO2, H2O, O2 can pass through the membrane freely.
But others such as K+ require specific potassium bumps throughout the membrane. Which acts to transport Na+ and K+ cross the membrane.
Answer:
Fish in a small pond will most likely depend on which of the following biotic factors to meet their needs? Plants that exchange gasses with the pond water. Insects that feed on other insects in the pond. Water birds that prey on amphibians and small fish.
Explanation:
Well for starters there's a sustainable increase in thyroid cancer after childhood exposure. It can also cause death and radiation in factories. Hope this does something for you
5. Bose Einstein consendates
Heating, burning
The atomic mass of that element is 12.011