1.underground stem -- for storage of food ex. potato , ginger.
2.spines for protection ex. citrus , bougainvillea
The correct answer is A. Apoptosis is regulated cell death/suicide, not accidental.
When climbing a mountain, we can observe transitions in biological communities that are analogous to the changes in biomes at different latitudes.
Is chromosome that the genetic information that make the DNA <span />
Answer:
The six most important characteristics of a civilization are cities, government, religion, social structure, writing, and arts and architecture.
Explanation: