Answer:
a fertilized egg- zygote
separation of two ends of an old cell- cytokinesis
union of egg and sperm- fertilization
egg-producing organ in lower plants- archegonium
All stages respiration occur in every single cell.
Means they are related through a common distant ancestor. This shows that these structures (morphology) are homologous. They all have 7 neck (cervical) vertebrae, but giraffes cervical vertebrae are elongated compared to that of humans due to their adaptation as browsers .
Probably water. Abiotic means not living, such as sunlight or water.
