Answer: d. Observation, hypothesis, experiment, conclusion.
Explanation:
A scientific method can be define as the plan that is required to be followed in order to determine the cause of a natural phenomena. It involves making an observation of subject of study, making a hypothesis, making a prediction, performing experiments on the basis of set protocols, concluding results.
The two main DNA lesions formed by exposure to UVB are cyclobutane pyrimidine dimers (CPD) and 6-4 pyrimidine pyrimidone photoproducts (6-4PPs), and its Dewar isomers.
D) because those birds are scavengers and therefore there will be competition in finding food and then to fight off the other birds so that you can get the food first.
