The rib cage is known for enclosing and protecting the thoracic cavity. In the thoracic cavity, the heart and lungs are present. Hence, the rib cage protects the heart.
Answer: Biosynthesis is a multi-step, enzyme-catalyzed process where substrates are converted into more complex products in living organisms. In biosynthesis, simple compounds are modified, converted into other compounds, or joined together to form macromolecules. This process often consists of metabolic pathways.
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<h2>hope this help's</h2><h3 /><h3>Conclusion. Plant cells have certain distinguishing features, including chloroplasts, cell walls, and intracellular vacuoles. Photosynthesis takes place in chloroplasts; cell walls allow plants to have strong, upright structures; and vacuoles help regulate how cells handle water and storage of other molecules.</h3>