After concluding his research, which statements would Virchow agree with? Check all that apply. A. Living things come from nonliving things.
B. Cells can come from nonliving materials.
C. Frogs can come from mud.
D. Living things can only come from living things.
E. Cells come from pre-existing cells.

When does a spring tide occur? question 9 options: they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur twice a year in the spring and fall. they occur on the date of the vernal equinox each year, no matter what stage the moon is in. this is why they are called spring tides. they occur when the sun, moon, and earth are at 45-degree angles from each other. this happens once every spring. they occur when the sun, moon, and earth are aligned. in spite of their name, these tides occur all year long.