In your own words, explain how the information carried by mRNA is used in the ribosome to form proteins. Be sure to include the following words and phrases: nitrogenous base, amino acid, codon, polypeptide.

In which situations is the principle of cross-cutting relationship useful in determining relative age?

What best explains whether bromine (br) or neon (ne) is more likely to form a covalent bond? bromine forms covalent bonds because it has seven valence electrons, but neon has eight valence electrons and already fulfills the octet rule. bromine forms covalent bonds because it has many electron shells, but neon has only two electron shells and is tightly bound to its electrons. neon forms covalent bonds because it can share its valence electrons, but bromine has seven valence electrons and can gain only one more electron. neon forms covalent bonds because it has only two electron shells, but bromine has many electron shells and will lose electrons in order to fulfill the octet rule.

Why did adult crab numbers decline in he ecosystem, even though sea stars were still available?