Answer:
C. Both continuous variation and discontinuous variation
Explanation:
<em>this was the answer on my quiz a couple days ago</em>
The first line of defense in plants is an intact and impenetrable barrier composed of bark and a waxy cuticle. Both protect plants against herbivores. Other adaptations against herbivores include hard shells, thorns (modified branches), and spines (modified leaves).
The ultimate source of energy for living things is the Sun. Plants and other photosynthetic organisms take the energy from sunlight to make glucose. This energy passes to other organisms through the food chain.
The experiment is performed in order to either accept or reject the hypothesis based upon the results
