Is the measurement of the density of a substance as compared to water.

a. liquid gravity
b. precise gravity
c. ideal gravity
d. specific gravity

Option (D) is the correct answer.

Explanation:

When density of a substance is measured with respect to the density of a standard substance which is usually water then the ratio is known as specific gravity.

Whereas density is defined as the mass of a substance present in per unit volume.

Mathematically,        Density =

For example, specific gravity of water is 1 and a substance that has specific gravity less than specific gravity of water will float otherwise it will sink.

So, specific gravity of mercury is 13.6. Hence, it will sink in water.

Thus, we can conclude that specific gravity is the measurement of the density of a substance as compared to water.

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.

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek