According to astronomers, the big bang occurred approximately 14 billion years ago.
a. true
b. false

Compare and contrast the adaptations of free-living flatworms and parasitic flatworms

How does buring fossil fuels impact does carbon cycle? what large impact does this have on the envirnment?

Put the following processes of protein synthesis in the correct order: - dna strands unwind and separate - mrna copies dna according to complimentary base pairing - trna's anticodons bring amino acids to the corresponding mrna codons - amino acids bind to each other making a protein - mrna leaves the nucleus - a stop codon is reached, the newly formed protein is released to go do its job for the cell