Which statement describes the stem cells and how they become new types of cells? They are embryonic stem cells that differentiate based on the expression of specific genes and the influence of external chemical signals.
They are adult stem cells that replicate based on the expression of specific genes and the influence of external chemical signals.
They are embryonic stem cells that differentiate into cell types similar to their tissue of origin when their DNA mutates.
They are adult stem cells that replicate into cell types similar to their tissue of origin when their DNA mutates.

Compare and contrast your sells take in oxygen, water, and food. what is one waste product that leaves your cells?

What substance in the leaves gives them a green colour?

Select all the correct answers. which statements fail to meet the requirements of a scientific claim? a) in the final 100 meters of a 10,000-meter race, an athlete's speed is more strongly related to anaerobic efficiency than to aerobic efficiency. b) flowers that reflect the most ultraviolet light are more likely to attract bees and other pollinators than flowers that reflect less ultraviolet light. c) even though evidence indicates that the solar system's planets follow elliptical paths, copernicus's model involving circular orbits is true. d) the evidence supporting newton's laws of motion was accurate in newton's time, but the universe operates differently today.