HELP URGENT Which is true for all stem cells?
○They express the same genes to become specific types of cells.

○They receive cellular signals to repair different types of cells.

○ They acquire DNA changes and are unable to replicate new cells.

○ They share the same DNA and can become a variety of new cells.​

Asolution of an enzyme and a substrate was placed in a water bath and the temperature of the reaction was raised gradually. the graph shown was plotted at the end of the experiment. what can be concluded from the graph? a) temperature has no effect on the activity of the enzyme. b) the effect of temperature on the enzyme is unpredictable. c) the enzyme shows increased activity up to a certain temperature. d) the activity of the enzyme is inversely proportional to the temperature.

What should be the strand of complementary dna produced by the strand of dna shown below cgt ata

How do specific cell structures and organelles contribute to maintaining homeostasis in the cell?