1 4 and 5 I think .... (insert 20 characters)
2. Cell, Stem Cell, Tissue, Organs, Organ System, Organism
3. Cardiac Muscle Cell, Stem Cell, Cardiac Muscle Tissue, Circulatory System, Heart
4. Bone Cell, Stem Cell, Connective Tissue, Skeletal System, Bone
Notice how there's a certain noticeable pattern to the complexity of the systems and organs.
Answer:
apices
Explanation:
The growth occurs by single apical cell in initial stages, But mature plants have several scattered apical cells on the margin so growth also takes place at many points..
Functionalism. It is according to the concept 'survival of the fittest'
