A.) ethical is a concern raised
Explanation:
Whereas primary tissues allow for vertical growth, secondary tissues allow for lateral growth: they allow stems and roots to become wider. In roots, the formation of both secondary meristems involves the pericycle.
1. Variations
2. Extinction
3. Behavioral
4. Functional
5. Structural
Answer:
C
Explanation:
neon doesn't make up the atmosphere... or does it jk it doesn't