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.​

How do accessory pigments chlorophyll?

Select the correct answer. which term do biologists use to describe the average number of individuals of a species per unit area? a. carrying capacity b. population density c. minimal viable population d. survivability curve

Astudent wants to test the hypothesis that fertilizer improves the growth rate of grass seeds. to test this hypothesis, the student put the same amount of grass seed in 3 containers with the same type of soil. the student measured the growth at the end of the week. all plants received equal amounts of water and sunlight. if you were asked to graph this data, what would you place on the x-axis? a. fertilizer b. water c. plant growth d. week one