If the frequency of a wave decreases, what happens to velocity?

Building glycogen from glucose molecules is an example of what

Many plants can reproduce asexually. which of these is an example of asexual reproduction in a plant? a. pine cones forming on a tree b. cross-pollination in a tomato c. roots sprouting from a potato d. night-blooming jasmine flowers

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