A student carried out an investigation using chicken eggs. This is the method used.

1.  Place 5 eggs in acid for 24 hours to dissolve the egg shell.

2. Measure and record the mass of each egg.

3. Place each egg into a separate beaker containing 200 cm3 of distilled water.

4. After 20 minutes, remove the eggs from the beakers and dry them gently with a paper towel.

5. Measure and record the mass of each egg

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.

Jason adds the antibiotic penicillin to a bacterial culture. the bacteria develop genetic modifications in their genome, which gives them resistance to the antibiotic penicillin. what caused this genetic modification?