Which of the following is an example of sexual reproduction?
a pollen grain from one flower fertilizes another flower, resulting in the development of a seed.
a bacterium copies its dna and divides into two daughter cells in a process called binary fission.
a piece of a starfish is broken off and grows into a new starfish in a process called regeneration.
a yeast offspring grows out of the body of its parent in a process called budding.

Sexual reproduction is occurring in the following examples:

•A pollen grain from one flower fertilizes another flower, resulting in the development of a seed.

•A frog releases sperm over eggs that were laid by another frog, and these cells fuse together.

Explanation:

the atomic number of magnesium is 12. its nucleus must contain 12 protons and no electrons. the atomic number of an atom is determined by the number of protons.

magnesium is an electrolyte injection commonly used to treat low magnesium levels in your blood. it is also used to prevent or control seizures in women with preeclampsia or eclampsia.