1. How does gene activation lead to cell differentiation? A. Different genes are activated in different cells, causing each cell to have a unique function.
B. The same genes are activated in every cell of your body, causing every cell to function the same.
C. Certain cells only have parts of DNA that cause cell differentiation,
D. Unique genes are in different cells, causing each cell to have a unique function.

Which is the correct answer and why? Also write why the others are wrong.

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a. coral reefs because of the loss of the symbiotic algae living within their bodies b. penguin populations because the fish they eat will move into warmer waters c. mountain-dwelling birds because rising sea levels will relocate their food sources d. large cats in the rainforest because of decreased habitat loss for their prey