Which of the following happens before a black hole comes into existence?
A Gravity ceases to exist in a certain region of space.
B.
A new star is born at the center of a galaxy.
C
An old star collapses in on itself.
Activat
D
The fabric of spacetime is ripped by a star or planet.

Which element forms the basis of all organic organisms a carbon b oxygen c hydrogen d nitrogen

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

The first generation of offspring from the cross of two parents is called the a.f1 generation b.f2 generation c.short generation d.p generation