Difference between a plant and an animal cell:
- Plants have cell walls, animals don't
- Plants have a large central vacuole, while animals have small scattered vacuole
- Plants cells are rigid and strong, referred to as <u><em>Turgid </em></u> in science, and have a definite shape
- Animal cells dont have a definite shape
Hope this helps
Embryo should be the answer
Alfred Marshal was one of the most influential economists of his time and the author of the Principles of Economics book which was the principal economic textbook in England for long years. During his economic theory development, he borrowed a concept from the marginalists which is the theory of demand and the collective result of buyers who yearns services and products or the concept of scarcity.