Tertiary structures:. a. of globular proteins would be destabilized by the mutation of a Phe, found in the core of the protein, to a Glu.
b. are all stabilized by covalent long-range interactions.
c. are not found in protein that exhibit quaternary structure.
d. unique features are dependent upon the primary structure.
a) A), B), C), and D).
b) A), B), and D).
c) A) and D).

b, acidosis

acidosis is when the human body attempts to return the bloods ph levels back to normal when the blood is acidic

my teacher would say no s

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.