How did the development of the cell theory lay the foundation for the current advancements in stem cell research?

Why zebra fish experience similar genetic disease as human

What is a population? a. all the members of the same species living in the same ecosystem at the same time b. the number of a species living in the same ecosystem over a period of time c. the total number of organisms living in an ecosystem at a point in time d. all the members of a food web in the same ecosystem

Earth is tilted on its axis. which of these would not exist if earth had no tilt?