Answers: 1 .The difference in the brightness of two stars with the same surface temperature is attributable to their sizes.( last choice)
2.Most responsible for the formation of a star is gravitational force.(second choice )
3. Blue ( last choice)
4.
A spinning neutron star that appears to give off radio wave pulses is called a pulsar ( third choice)
5.Greater redshifts in the spectra of galaxies indicate faster speeds ( first choice)
DNA is from our generation, all to the beginning, therefore we may inherit traits of our ancestors.
Answer:
mitochondria serve as the power house of a cell.
Average mass of the atoms of an element measured in atomic mass unit
