A large amount of untreated sewage entered the river. Many fish died. Untreated sewage water contains organic matter and bacteria. Explain why many fish died.

Anita thinks that she has heterozygous alleles for red hair.if she is correct, which of these diagrams best illustrates anitas alleles pf red hair

Where can a dna be found in a prokaryotic cell

Many organizations release indexes used to measure the development of the world's countries. as we learned in this lesson, these indexes measure many factors, from life expectancy to happiness. in your opinion, what are the three most important factors we can use to determine how developed a country might be? explain your answers in a few sentences.