Answer the following question given this paragraph: People may dispose of harmful substances incorrectly. For example, motor oil must not be drained into a storm sewer. Q: What harmful substance must not be drained into s storm sewer? Choices: - alcohol - debris - water runoff - motor oil A:
motor oil
Answer the following question given this paragraph: The water in a large lake may be so deep that sunlight cannot penetrate all the way to the bottom. Without sunlight, water plants and algae cannot live on the bottom of the lake. That's because plants need sunlight for photosynthesis. Q: Plants need sunlight for what process? Choices: - metamorphosis - cyclogenesis - glycolysis - photosynthesis A:
photosynthesis
Q: Answer the following question given this paragraph: Q: What kind of muscle relationship generally produces back-and-forth movement of a body part? Choices: - complementary muscles - cooperative muscles - synchronized muscles - antagonistic muscles A:
A: antagonistic muscles
Question: Answer the following question given this paragraph: Vertebrates have one of three reproductive strategies, known as ovipary, ovovivipary, or vivipary. Q: In vertebrates, ovipary, ovovivipary, and vivipary are different strategies for what vital process? Choices: - respiration - absorption - circulation - reproduction A:
Answer: reproduction
*Question*
Answer the following question given this paragraph: 31.3 Nutritional Adaptations of Plants Atmospheric nitrogen is the largest pool of available nitrogen in terrestrial ecosystems. However, plants cannot use this nitrogen because they do not have the necessary enzymes. Biological nitrogen fixation (BNF) is the conversion of atmospheric nitrogen to ammonia. The most important source of BNF is the symbiotic interaction between soil bacteria and legumes. The bacteria form nodules on the legume's roots in which nitrogen fixation takes place. Fungi form symbiotic associations (mycorrhizae) with plants, becoming integrated into the physical structure of the root. Through mycorrhization, the plant obtains minerals from the soil and the fungus obtains photosynthate from the plant root. Ectomycorrhizae form an extensive dense sheath around the root, while endomycorrhizae are embedded within the root tissue. Some plantsparasites, saprophytes, symbionts, epiphytes, and insectivoreshave evolved adaptations to obtain their organic or mineral nutrition from various sources. Q: What process refers to the conversion of atmospheric nitrogen to ammonia? Choices: - biological nutrient fixation - biological ammonia fixation - biological respiratory fixation - biological nitrogen fixation A:
**Answer**
biological nitrogen fixation
(Question)
Answer the following question given this paragraph: There are many farming methods that help prevent soil erosion. Q: Many innovative farming methods can prevent what type of erosion, which is especially important in agriculture? Choices: - plains erosion - fertilizer erosion - vegetable erosion - soil erosion A:
(Answer)
soil erosion