In which stage of the cell cycle do the nucleus and its contents divide? Choose the correct answer. O gap 1
O gap 2
O mitosis
O synthesis

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

Which statement about the immune system is false? a. lymphocytes reduce inflammation, b. b cells remember specific pathogens. c. most white blood cells kill bacteria d. white blood cells are made in lymph nodes.

What’s the student’s scientific question