The Great Lakes region is a major source of fresh water and home to a diverse group of plants and animals. Which of these factors could disturb the stability of the ecosystem?
A) A decrease in fishing throughout the Great Lakes region.
B) A slowdown of clear cutting and construction in the area.
C) Normal snowfall in winter, ensuring that water levels remain normal.
Eliminate
D) The disappearance of a keystone species due to an increase in water temperature.

What macromolecule is produced during translation? a. carbohydrate b. rna c. dna d. protein

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.

Protein and polypeptide sequences can be determined by first partially hydrolyzing the protein or polypeptide followed by amino acid sequencing of the fragment pieces using the chemical degradation process known as edman degradation. determine the sequence of the initial (18-amino acid) polypeptide that produces the following five partial sequences after hydrolysis and edman degradation.