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The correct answer is A
Genes and environment are both major influences.
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Answer:
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It is true that r-related species have a short life span and an early reproduction cycle. R-related species also known as r-strategist have a short and simple life span. Due to their simple life span, their nutrient exchange rate with the environment is rapid. Unlike K-selected species, they have the ability to reproduce at a young age. They reproduce a large number of off-springs, but many of their off-springs tend to die before attainment of their reproductive age.
A vaccine works by training the immune system to recognize and combat pathogens, either viruses or bacteria.
Answer:
Explanation:
During transcription, DNA is converted into RNA in the nucleus of the cell.
