Reinforcement and support
parenchyma, in plants, tissue typically composed of living cells that are thin-walled, unspecialized in structure, and therefore adaptable, with differentiation, to various functions. The cells are found in many places throughout plant bodies and, given that they are alive, are actively involved in photosynthesis, secretion, food storage, and other activities of plant life. Parenchyma is one of the three main types of ground, or fundamental, tissue in plants, together with sclerenchyma (dead support tissues with thick walls) and collenchyma (living support tissues with irregular walls).
A gene is <u>Co</u><u>d</u><u>e for a trait, </u><u>are</u><u> </u><u>small</u><u> </u><u>sections</u><u> </u><u>with</u><u> </u><u>DNA</u><u> </u><u>strand</u><u>,</u><u> </u><u>Are</u><u> </u><u>blueprints</u><u> </u><u>for</u><u> </u><u>proteins</u><u>.</u>
- <em>Therefore</em><em>,</em><em> </em><em>Option</em><em> </em><em>D</em><em>.</em><em> </em><em>All</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>above</em><em> </em><em>is</em><em> </em><em>correct</em><em>!</em><em>!</em><em>~</em>
Iron, oxygen and water react with the iron creating a substance known to us as rust.
Hope this helps.
Step 1. Simplify brackets

Step 2. Simplify
13
Done! :)
Your answer is A. 13 Hope this helps!