choose the correct reason
2. Multicellular organisms have a circulatory system
for transportation.
(a) They have a large and complex body design
(b) Not all cells are in direct contact with the
environment
(c) Diffusion does not occur in multicellular
organisms
(d) All the above are true
Answers
Answered by
1
Answer:
Option (a) is the correct answer
HOPE THIS HELPS!!
Answered by
1
Answer: Multicellular animals do not have most of their cells in contact with the external environment and so have developed circulatory systems to transport nutrients, oxygen, carbon dioxide and metabolic wastes. Components of the circulatory system include
blood: connective tissue of liquid plasma and cells
heart: a muscular pump to move the blood
blood vessels: arteries, capillaries and veins that deliver blood to all tissues
Similar questions