Answer:
An observational study, not an experiment.
Explanation:
Researchers investigated reasons why different species of birds begin to sing at different times of the morning. They captured and examined birds of 57 species at different sites around England. They reported that there is a strong relationship between the diameter of a bird's eye and the time it starts singing in the morning: birds with larger eyes tend to start singing earlier.This is an example of An observational study, not an experiment.
Answer:
Phosphorus is an essential nutrient for animals and plants.
Explanation:
It plays a critical role in cell development and is a key component of molecules that store energy, such as ATP ( adenosine triphosphate ), DNA and lipids (fats and oils). Insufficient phosphorus in the soil can result in a decreased crop yield.
Answer: the colonists felt like the government had to much power
Explanation: they had power over everything colonists had not say in anything
The first draft of the Articles of Confederation allowed each individual states' governments to have power. The purpose was to help everyone be happy and recover from the abuse of the British government. However, because the central government was rather weak, it lacked the power to enforce laws, impose taxes, etc., creating a rather huge problem for the states.
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