Answer:
James Watson and Francis Crick
Explanation:
Watson, Crick, Franklin, and Wilkins were four scientists that discovered the double-helix structure of DNA, which served as the foundation for modern biotechnology.
Franklin used X-ray crystallography at King's College London to acquire pictures of DNA, a notion previously proposed by Maurice Wilkins. Franklin's photographs led James Watson and Francis Crick to develop their renowned two-strand, or double-helix, model.
Answer:
B. Human activities and natural events can damage the environment.,
Explanation:
Human activities are those activities carried out by a human being. The environment is being degraded daily as a result of the activities of man as well as natural occurrences e.g earthquake, tsunami, wild fire etc.
Human activities also called anthropogenic activities that damage the environment include sewage pollution, burning of fossil fuels, oil spillage etc. Hence, according to this question, human activities and natural events can damage the environment.
Answer:
Protozoan infection of the intestines. Giardiasis forms cysts and travel through the feces so anything that comes in contact with the feces and the animal has consumed it will host the parasite.
Explanation:
