Question

which of these options shows the correct sequence of events in the cell cycle?
s, g1, m, g2
m, g1, g2, s
g1, s, g2, m
m, g2, g1, s
which of the following best explains how the cell cycle contributes to the growth and maintenance of complex organisms?
the cell cycle only occurs during early development and stops once the organism is mature.
the cell cycle creates identical cells, allowing organisms to replace damaged cells and grow.
the cell cycle creates new genetic combinations to help organisms adapt to their environment.
the cell reduces the number of chromosomes in cells to prepare for fertilization.

Explanation:

For the first question:
The cell cycle consists of interphase (G1 - cell growth, S - DNA synthesis, G2 - preparation for mitosis) and M phase (mitosis - cell division). So the correct order is G1, S, G2, M.
For the second question:
The cell cycle (specifically mitosis in the cell cycle) produces identical daughter cells. This allows for growth (increasing cell number) and replacing damaged cells (since new cells are identical to the old healthy ones). The cell cycle occurs throughout an organism's life (not just early development), creating new genetic combinations is more related to meiosis (not the typical cell cycle described here which is mitotic cell cycle for growth/maintenance), and reducing chromosome number is meiosis (for gamete formation, not for general growth/maintenance of complex organisms).

Answer:

First question: G1, S, G2, M
Second question: The cell cycle creates identical cells, allowing organisms to replace damaged cells and grow.