because different scientists have different theories or explainatons on how the universe came into being so that's why the origin of the universe is still a question
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Answer:
•Heart disease.
•Cancer.
•Unintentional injuries.
•Chronic lower respiratory disease.
•Stroke and cerebrovascular diseases.
•Alzheimer's disease.
•Diabetes.
•Influenza and pneumonia.
Explanation:
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DDT (Dichloro-diphenyl Trichloroethane) is a biocide. Biocides is the term that is broadly used to refer bactericides, fungicides, nematicides, insecticides, rodenticides and weedicides. A long term use of DDT can have favourable effect by resulting in complete eradication of the potential pests and invaders from an agricultural field. But the use of DDT for a long time has showed dangerous outcomes in the form of Biomagnification that resulted in tremendous decrease in bird population.
Explanation:
Biomagnification is defined as a gradual increase in concentration of a substance in successive trophic levels of a food chain.
Biomagnification of DDT interfered with the egg-shell formation and the thin shelled eggs broke at a premature stage. Thus , the bird population decreased significantly.
Answer:
In a process known as gene cloning, the host cell's biochemical processes are used to make many copies of the inserted gene and the protein it codes for.
Explanation:
Founding population arrives, biogeographic isolation occurs, genetic changes