Answer:
so like a plant that loses leaves in the fall does so because it won't have sun in the winter. then they grow back. it adapts to the environment
Answer;
C. A wall of stones and mortar
This would act as a model describing the cell membrane.
Explanation;
A cell membrane is made up of a phospholipid bilayer with embedded proteins.
A cell membrane hold the different components of the cell together and to protect it from the environment outside the cell. It acts as a boundary between the inside environment and the outside environment of a cell.
It regulates the materials that enters and exits the cell; through selective movement of substances in and out of the cell.
please see the attached images. Hope this helps you.
A............................................
To find the number of neutrons you subtract the Atomic number from the atomic mass.
23 - 11 = 12
12 Neutrons
