Ques:Q: Where does the process of digestion start? Read this paragraph and choose the correct option from the provided answers: Digestion starts in the mouth. When food is swallowed, it travels through the esophagus to the stomach. In the stomach, digestion continues and a small amount of absorption of nutrients takes place. Choices: - esophagus - stomach - small intestine - mouth A:

Ans:mouth
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Ques:Q: The renal hilum is the entry and exit site for structures servicing which organs? Read this paragraph and choose the correct option from the provided answers: Renal Hilum The renal hilum is the entry and exit site for structures servicing the kidneys: vessels, nerves, lymphatics, and ureters. The medial-facing hila are tucked into the sweeping convex outline of the cortex. Emerging from the hilum is the renal pelvis, which is formed from the major and minor calyxes in the kidney. The smooth muscle in the renal pelvis funnels urine via peristalsis into the ureter. The renal arteries form directly from the descending aorta, whereas the renal veins return cleansed blood directly to the inferior vena cava. The artery, vein, and renal pelvis are arranged in an anterior-to-posterior order. Choices: - ovaries - lungs - brains - kidneys A:

Ans:kidneys
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Ques:Q: What term is used to describe changes to an organism's dna and are an important driver of diversity in populations? Read this paragraph and choose the correct option from the provided answers: Mutation Mutations are changes to an organism's DNA and are an important driver of diversity in populations. Species evolve because of the accumulation of mutations that occur over time. The appearance of new mutations is the most common way to introduce novel genotypic and phenotypic variance. Some mutations are unfavorable or harmful and are quickly eliminated from the population by natural selection. Others are beneficial and will spread through the population. Whether or not a mutation is beneficial or harmful is determined by whether it helps an organism survive to sexual maturity and reproduce. Some mutations do not do anything and can linger, unaffected by natural selection, in the genome. Some can have a dramatic effect on a gene and the resulting phenotype. Choices: - adaptations - pathogens - evolutions - mutations A:

Ans:mutations
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Ques:Q: What kind of a reaction occurs when a substance reacts quickly with oxygen? Read this paragraph and choose the correct option from the provided answers: A combustion reaction occurs when a substance reacts quickly with oxygen (O 2 ). For example, in the Figure below , charcoal is combining with oxygen. Combustion is commonly called burning, and the substance that burns is usually referred to as fuel. The products of a complete combustion reaction include carbon dioxide (CO 2 ) and water vapor (H 2 O). The reaction typically gives off heat and light as well. The general equation for a complete combustion reaction is:. Choices: - invention reaction - Fluid Reaction - nitrogen reaction - combustion reaction A:

Ans:
combustion reaction
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