Write the ion notation for calcium.

Hey me with this one❤❤❤❤ every organism needs food. does a cell also need it? explain very briefly.

What are some possible short and long term medical concerns for crew members on longer space exploration trips

Which statement best describes how the loudness of the sound affects the high-pressure region created by the sound wave? a. a louder sound has no effect on the pressure created. b. a louder sound means a high-pressure region that is higher. c. a louder sound means a high-pressure region that is not as high.