Answer:healthy plants
Explanation:the farmers use raw manure on their fields because it is an excellent source of nitrogen (N), phosphorus (P) and potassium (K), which are all nutrients necessary for plants to grow and thrive.
1. Natural selection is the best of the organisms to live past hardships and survive, leaving the weakest to die. Survival of the fittest.
2. Adaptation is an organism changing to better themselves in a certain environment.
3. These moths were adapted to blend into their surroundings, so as to not be seen by predators.
4. Because of the pollution from the city, the tree’s bark turned from a lighter shade brown to a darker shade brown.
5. A majority of the moths were a lighter gray. With the changing color bark they were seen more by predators.
6. Adaption caused the first darker moths to appear because they learned they needed to blend into the new tree bark color.
7. The change from light to dark gray was very needed for moths. It explains natural selection for those moths who did not adapt to different color gray. Adapting the new tree bark color helped moths been less seen by predators therefor keeping their species more alive.
Answer:
tsunamis
El Niño
Explanation:
The reason why it is theses is because tsunamis are just waves and the water can go back to the oceanor dry up and its not the last 3 because the valcano's are pretty much permenet and glabal warming is bad too!
The most common circumference to be expected in this situation is 2 cm.
Since it is given that the original population of oak trees contains acorns with the most common circumference of 2 cm, thus, the same circumference will be favored after 15 generations of stabilizing selection.
Stabilizing selection occurs when natural selection results in stabilization i.e. large number of individuals attain mean or average value for a particular trait. In this process, phenotypes of medium-sized individuals are favored through natural selection.
Since it is already mentioned that the mean circumference is 2 cm in the original population thus the same value will be expected after 15 generations of stabilizing selection.
To learn more about stabilizing selection here
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