Ocean salinity is usually expressed in charts and graphs chemical formulas parts per billion parts per thousand

parts per thousand

Explanation:- Salinity is the total amount of solid material dissolved in water.

1. Charts and graphs are used to represent a set of numerical  data in pictorial form.

2. Chemical formulas is the formula which depicts the number of atoms of each element present in  a substance.

3. parts per billion is used to express the concentration of very dilute solutions.It is used when 1 part of the solute is dissolved in parts of the solution.

4. parts per thousand is used to express the concentration of dilute solutions. It is used when 1 part of the solute is dissolved in 1000 parts of the solution.

c-reactive protein (crp) is an acute phase protein belonging to pentraxin family of proteins, whose levels increases 1000-fold or more in concentration in blood during the occurrence of an injury, inflammation or tissue death.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.