Question

read the passage to answer the question.
have you had the chance to watch a tree grow over a span of several years? did you notice that the tree grow thicker and taller? deep in the roots of the tree and high in the growing shoots are meristem cells. each year, the meristem cells help the tree continue to grow.
which process is most critical for different types of tree cells to develop?

• mitosis
• dna replication
• sexual reproduction
• cell differentiation

Explanation:

To determine the critical process for different tree cell development, we analyze each option:

• Mitosis is cell division for growth/repair, but not for cell type specialization.
• DNA replication is for cell division (copying genetic material), not for cell differentiation.
• Sexual reproduction involves gametes and is not related to regular tree cell development from meristem cells.
• Cell differentiation is the process where cells become specialized (different types) with unique functions, which is key for different tree cells to develop from meristem cells.

Answer:

cell differentiation (the option corresponding to "cell differentiation" among the choices)