Answer:
A. Mutations change the nucleotide sequence of the gene, resulting in a different arrangement of amino acids.
Explanation:
Mutations alter the sequence of nucleotides in a molecule of DNA. DNA is used to create mRNA, which is used to create a chain of amino acids that make a protein. If the mutation changes the sequence of DNA, then the sequence of amino acids and the final protein will be different.
This can affect its structure and function. If the protein is a cell surface protein, and its structure is significantly altered, antibodies may no longer recognise and bind to the protein.
Answer: AB should be your answer
It thaws to a depth of a few centimetres and becomes soggy and wet.
Answer:
56.6 mm of Hg
Explanation:
Given that;
the diastolic blood pressure at the heart level is 80.0 mm Hg = 
height = 0.300 m
the diastolic pressure at the height of the head, which is 0.300 m above the heart can be determined using the formula
P= 
where; 
is the hydrostatic pressure applied by the column of the liquid (Blood) of height (h) and average density 
, also the g = gravitational acceleration.
the average density of a human blood = 1060 kg/m³
gravitational acceleration. ( g ) = 9.81 m/s²
h = 0.300 m
∴ the = 1060 kg/m³ × 9.81 m/s² × 0.300 m
= 3119.58 Pascal (Pa)
From the standard conversion rate, 1 mm of Hg(mercury) = 133.322 Pa
∴ the amount of mm of Hg(mercury) that can be gotten from 3119.58 Pascal (Pa) will be; 
= 23.40 mm of Hg(mercury)
P=
P= (80.0 - 23.4) mm of Hg
P= 56.6 mm of Hg
Answer: 20. A 21. B 22. A=2, B=3 23. A=4, B=3 25. B
Explanation: A has H2O (water). B has a hydrogen ion, so acidic.
In B H2CO3 is carbonic acid
