I believe all of the above!
Yes, when the egg and a sperm cell meet fertilization has taken place
"Neurons" are the functional unit of the nervous system; it is the specialized cells transmitting nerve impulses
Hope this helps!
Answer;
cells are very different but have similar properties
Explanation;
-Even though there are many different types of cells, they all share similar characteristics. All cells have a cell membrane, organelles organelles, cytoplasm, and DNA. All cells are surrounded by a cell membrane, all cells contain organelles, all cells contain cytoplasm and all cells contain DNA.
-Cells may differ in their number such that some organisms are made of only a single cell while other organisms are made of billions of cells
Answer:
B
Explanation:
Source credibility is very important. If there isn't any other information that proves or disproves your source or double checks it, its not typically "credible"
