Hi there!
I think bread turns moldy less quickly when it is kept in a refrigerator than when it is kept at room temperature because bacteria eats foods like bread and causes mold, and less bacteria grow in colder temperatures. Since less types of bacteria thrive in colder temperatures, it takes longer for less bacteria to create mold.
Hope this helps!
Diffusion is the movement of particles from a high concentration area to a low concentration area.
Things that can go through a membrane are ions (charged), small polar molecules. Big molecules can't go through the membrane due to its large size and disrupting the membrane.
Passive transport is the movement of substances acrpss the cell membrane w/o the use of energy. Active transport needs energy to move substances across a cell membrane.
Question 4 is to consume food.
Answer: he definition of ionic bond is when a positively charged ion forms a bond with a negatively charged ions and one atom transfers electrons to another.
Explanation:
That would be B - Metabolism.
