Which is an example of cell differentiation and specialization? A. All mammal cells are identical.

B. Starting as stem cells, a

gene cuts on in each which leads to them changing into muscle cells, fat cells, nerve cells, and red blood

cells each having different jobs.

C. All cells have cilia at the adult stage.

D. The DNA is different in all body cells.

Cell division is important to single celled organisms because it allows the cells to reproduce. through cell division, cells make exact copies of themselves. when single celled organisms go through cell division, they make exact copies of themselves which is how they reproduce.

Carbon-14 has a half-life of 5,730 years and most igneous rock is older than that.

This is s cute awee : (( . well if she's showing you signs that she may like you , then shoot your shot ! don't be afraid . & if you're unsure that she's giving you these signs , then wait out for a little bit . most girls are different . some may act really sweet , but only bc you're a good friend of hers . that , or she might like you . you just never know . but i think you should sit down with her & tell her how you feel . but don't be awkward & shy . just be straight up & tell her how you feel . if the feelings aren't mutual , then don't cry about it . you need to respect her decision & look for others in the world . feelings can be difficult & confusing , but don't be afraid to show them . i say you play it out & if you're still unsure about it , talk to her . - rach