The roots of most plants have root hairs near their tips. Researchers grew two types of plants, A and B, in soil with different concentrations of
phosphate ions. They measured the mean number of root hairs in a small area of the
roots, and also the mean length of the root hairs.

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

2. if someone had the list of traits you provided in question 1, do you think he or she would be able to find you in a group of 1000 people? why or why not? if not, what other information encoded in your genes might distinguish you from the others in the group? what are other traits that are encoded for by dna?

Which characteristic should describe all evidence collected by a scientist? true obvious objective subjective