describe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant supportdescribe the role of roots and stems in plant support
One example of a positive feedback loop in childbirth is contractions. When the contractions start, they produce oxytocin, which stimulates stronger contractions, which produce more oxytocin.
Natural selection affects or changes a population and not only an individual organism because as there are somethings to be changed in a certain organism to adapt to the changes in the environment, all organisms in a certain species will be able to adapt and the changes therefore is collective.