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22 Jul

Peaks on the landscape correspond to genotypic frequencies at which the average fitness is high, valleys to genotypic frequencies at which the average fitness is low. adaptive logic: A behavior has adaptive logic if it tends to increase the number of offspring that an individual contributes to the next and following generations.

The field of paleontology is important to the support and understanding of evolution.The electrons are outside the nucleus in electron shells that are in different shapes at different distances from the nucleus. Ernest Rutherford shot subatomic particles at a very thin piece of gold.Most of the particles went straight through the gold.Evolution occurs on a large scale over a very long time, but it is not unlike you and your parents.You are a descendant of your parents but in a modified version; you are not exactly like them even though you came from a combination of their genes. But despite the controversy, evolution is, in fact, the core theme of biology and has been studied extensively enough to be called a theory. Furthermore, all protons are exactly the same, all neutrons are exactly the same, and all electrons are exactly the same. Sideways periodic chart with electron shell numbers. Here is an outrageous thought: All the matter around you is made of atoms, and all atoms are made of only three types of subatomic particle, protons, electrons, and neutrons.The earth's magnetic field is decaying rapidly, at a constant (if not decreasing) rate. At this rate, 8000 years ago the earth's magnetism would have equaled that of a magnetic star, a highly unlikely occurrence. acquired trait: A phenotypic characteristic, acquired during growth and development, that is not genetically based and therefore cannot be passed on to the next generation (for example, the large muscles of a weightlifter).adaptation: Any heritable characteristic of an organism that improves its ability to survive and reproduce in its environment.