20 points

which of these forms as part of the life cycles of both low-mass and high-mass stars as a result of a star-forming nebula collapsing and spinning?

a) protostar
b) black hole
c) supernova
d) white dwarf

preservation because he preserves part of the land and preserves means save

explanation:

nucleic acid molecules are incredibly complex, containing the code that guarantees the four different nucleotide units comprise dna, the nucleic acid of interest to the genealogist. and one of four nitrogen-containing molecules called nucleotides

answer; hydrologic cycle;