The chloroplast and the cell wall
Answer:
plants make food with the help of sunlight, water n air is called photosynthesis
Explanation:
<span>The spicules have an important purpose for loosely constructed animal such as sponge. First of all, spicules give structure which is vital due to loose construction. Secondly, it protects from predators. This is similar to porcupine quills in serving to protect.</span>
