Answer:
The concentration of this solution in units of pounds per gallon is 
Explanation:
Units of measurement are established models for measuring different quantities. The conversion of units is the transformation of a quantity, expressed in a certain unit of measure, into an equivalent one, which may or may not be of the same system of units.
In this case, the conversion of units is carried out knowing that 1 μg are equal to 2.205*10⁻⁹ Lb and 1 mL equals 0.00022 Gallons. So

If 1 μg equals 2.205*10⁻⁹ lb, 2.77 μg how many lb equals?

lb=6.10785*10⁻⁹
So, 2.77 μg= 6.10785*10⁻⁹ lb
Then:

You get:

<u><em>The concentration of this solution in units of pounds per gallon is </em></u>
<u><em></em></u>
Answer: Cell A & Sex of rabbit
Cell A is a Sperm Which mean is a male cuz males have sperms
Explanation: Explain why the offspring os not genetically identical to either parents
I don't know how to answer that one
Answer: 
Explanation:
The unbalanced equation is

Balancing this equation, we get:

Na only because cation is a positive ion whole cl is a negative ion in anion