The equation total # of people in an area/(land) area in km2(or mi2) is used to calculate
a.
growth rate
b.
population density
c.
death rate
d.
carrying capacity

Option B, population density

Explanation:

Population density is defined as the number of individuals/organism in a per unit area of a given ecosystem.

Here in this case number of people in an area divided by total land area gives number of people living in a unit area of this ecosystem.

The formula for population density is

Where P represents the total population in a given area

and A represents the total area of that ecosystem

Thus, option B is correct.

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.

meiosis is the correct answer