Only vertebrates and some invertebrates have hemoglobin. Plants don't need hemoglobin (and therefore don't have any) to take up oxygen because they can do so via their stomatal openings in their leaves.
No. They are structures found in plant and animal cells.
Plant
nucleus
if it has chloroplast it is a plant cell
Animal cells have centrioles.
Cell membrane
Nothing!
Biologist or a cytologist
lysosomes
chlorophyll
Plants and animals are called
both plant and animal cells have, a nucleus, nucleolus, ribosomes, endoplasmic reticulum, and a vacuole.