Hamza's tricycle was missing a wheel. When he tried to ride his trike he had to put more force to make it move. Why do you think this happened? What will you suggest Hamza do to move his trike faster? Give a scientific reason for your suggestion.

Despite the differences in mature plant cells, all of them are derived from meristem cells. the three major types of tissue systems develop from the meristem. meristems develop cells in all but which tissue?

The cluster of developing cells from conception until birth is called an

Which statement is the best summary of the model? a-a series of aerobic and anaerobic reactions take place in cells b- the sun's energy moves through trophic levels in a food chain c-light energy is converted into stored chemical energy plants. d- food molecules are broken down in the cells if living things.