The nucleus will have the greatest mass. Among the 3 kinds of subatomic particles, electrons are the lightest (by several orders of magnitude), protons and neutrons are much closer is magnitude, though neutrons are slightly heavier. However, in the diagram, the nucleus contains both the neutrons and the protons, so its combined mass would be heavier than either the neutrons alone or the protons alone.
Answer: C. A brood chamber is made by bees, but comb foundations are built by humans.
Explanation:
The brood chamber is a natural part of the beehive where the bee workers made cells where these works lay eggs. Here, development of the larvae and pupae takes place. The cells of the brood chamber holds the pollen, nectar and honey which is used to feed to develop the larvae.
Comb foundations are the artificial creation made by humans is a place made from wax which forms the base of the honeycomb. It is used to give the support to the beehive.
Both plant and animal cells have membranes so whatever chemical reactions they have going inside the cell, it is regulated and maintained. Membranes help separate the internal environment from the external environment.
Hope this helps - I'm currently in cell biology so this question is interesting
