100 !
drag the tiles to the boxes to form correct pairs.
the table shows the distances between a star and three celestial objects. use the conversion factors to rewrite the distances in different, but equivalent, units.

celestial objects distance from the star
object a 0.1877 pc
object b 30.06 au
object c 778.3 million km

conversion factors:

1 au = 1.5 × 108 km
1 light-year = 9.5 × 1012 km
1 parsec = 31 trillion km, or about 3.262 light-years

distance to object a
distance to object b
distance to object c
0.0001458 pc
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5.2 au
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57.91 million km
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the answer to your question is sperm

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.