In which plants' life cycle does double fertilization occur? seedless plants nonvascular plants gymnosperm plants angiosperm plants

The correct answer would be angiosperm plants.

Double fertilization is an event that exclusively takes place in angiosperms and is completely absent in gymnosperms.

During this event, two male gametes are released in the cytoplasm of the synergid. One male gamete fuses with the nucleus of the egg cell in order to form a zygote and other male gamete fuses with the polar nuclei and produce triploid primary endosperm nucleus (PEN).

the answer to your question is a plant

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.