Q: What is the basic structure that holds plants upright, allowing plants to get the sunlight and air they need? Read this paragraph and choose the correct option from the provided answers: Stems are organs that hold plants upright. They allow plants to get the sunlight and air they need. Stems also bear leaves, flowers, cones, and smaller stems. These structures grow at points called nodes. The stem between nodes is called an internode. (See Figure below . ). Choices: - twig - stamen - root - stem A:
stem

Q: In harmonic motion there is always what force, which acts in the opposite direction of the velocity? Read this paragraph and choose the correct option from the provided answers: In harmonic motion there is always a restorative force , which acts in the opposite direction of the velocity. The restorative force changes during oscillation and depends on the position of the object. In a spring the force is the spring force; in a pendulum it is the component of gravity along the path. In both cases, the force on the oscillating object is directly opposite that of the direction of velocity. Choices: - magnetic force - inorganic force - locomotion force - restorative force A:
restorative force

Q: Parenchymal, collenchymal, and sclerenchymal cells are associated with what types of living things? Read this paragraph and choose the correct option from the provided answers: Different types of plant cells include parenchymal, collenchymal, and sclerenchymal cells. The three types differ in structure and function. Choices: - primates - parasites - fungi - plants A:
plants

Q: What are carbonated beverages pressurized with? Read this paragraph and choose the correct option from the provided answers: NaN3 is 1.847 g/cm . What is the volume of the gas produced compared to the solid reactant? Suggest a plausible reason to explain why skin burns can result from the inflation of an airbag during an automobile accident. Under basic conditions, the reaction of hydrogen peroxide (H 2O2) and potassium permanganate (KMnO4) produces oxygen and manganese dioxide. During a laboratory exercise, you carefully weighed out your sample of KMnO4. Unfortunately, however, you lost your data just before mixing the KMnO 4 with an H2O2 solution of unknown concentration. Devise a method to determine the mass of your sample of KMnO4 using excess H2O2. Carbonated beverages are pressurized with CO 2. In an attempt to produce another bubbly soda beverage, an intrepid chemist attempted to use three other gases: He, N 2, and Xe. Rank the four beverages in order of how fast the drink would go "flat" and explain your reasoning. Which beverage would have the shortest shelf life (i. , how long will an unopened bottle still be good)? Explain your answer. ♦️ Urea is synthesized industrially by the reaction of ammonia and carbon dioxide to produce ammonium carbamate, followed by dehydration of ammonium carbamate to give urea and water. This process is shown in the following set of chemical equations:. Choices: - helium - dioxide - hydrogen - co2 A:
co2