A eukaryotic cell carries out phagocytosis and engulfs a gram-negative bacterial cell, which ends up in the resulting food vacuole. Hypothetically, to go from the cytosol of this bacterial cell to outside of the eukaryotic cell that has taken it in, what is the least number of biological membranes that would have to be crossed

3

Explanation:

Lysozyme and the food vacuole are both membrane bounded organelles. Then to go out of the eukaryotic cell, it has to pass through the cell membrane

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.