What is the complementary strand for ACGTT

Which of the following occurs most often in a population when genetic variation and overproduction are present? some organisms have a lower reproductive success than others. some organisms have a higher reproductive success than others. some organisms have no reproductive success. some organisms do not have genetic variation.

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

In general, characteristics that an organism survive and reproduce become more common over time. what mechanism of evolution causes this?