Answer the following question given this paragraph: The stability of an ecosystem depends on the actions of the decomposers. Examples of decomposers include mushrooms on a decaying log. Bacteria in the soil are also decomposers. Imagine what would happen if there were no decomposers. Wastes and the remains of dead organisms would pile up and the nutrients within the waste and dead organisms would not be released back into the ecosystem. Producers would not have enough nutrients. The carbon and nitrogen necessary to build organic compounds, and then cells, allowing an organism to grow, would be insufficient. Other nutrients necessary for an organism to function properly would also not be sufficient. Essentially, many organisms could not exist. Q: The stability of an ecosystem depends on the actions of what, exemplified by mushrooms on a decaying log and bacteria in soil? Choices: - whitefly - fluxes - aphids - decomposers A:
decomposers
Answer the following question given this paragraph: The energy in sunlight, or solar energy, can be used to heat homes. It can also be used to produce electricity in solar cells. However, solar energy may not be practical in areas that are often cloudy. Q: The energy in sunlight is also known as what kind of energy? Choices: - kinetic energy - potential energy - geothermal energy - solar energy A:
solar energy
Q: Answer the following question given this paragraph: Q: What part of a plant protects the plant cell, maintains its shape, and prevents excessive uptake of water? Choices: - chloroplasm - stem - root - wall A:
A: wall
Question: Answer the following question given this paragraph: Most musical instruments use resonance to amplify the sound waves and make the sounds louder. Resonance occurs when an object vibrates in response to sound waves of a certain frequency. In a musical instrument such as a guitar, the whole instrument and the air inside it may vibrate when a single string is plucked. This causes constructive interference with the sound waves, which increases their amplitude. Q: What happens do the sound during a resonance? Choices: - it becomes quieter - it dissipates - it echoes - amplified, it becomes louder A:
Answer: amplified, it becomes louder
*Question*
Answer the following question given this paragraph: Plants in the haploid generation are called gametophytes . They form from haploid spores. They have male and/or female reproductive organs and reproduce sexually. They produce haploid gametes by mitosis. Fertilization of gametes produces diploid zygotes. Zygotes develop into the diploid generation. Q: How do gametophyte plants form haploid gametes? Choices: - during omniosis - during after mitosis - during after omniosis - through mitosis A:
**Answer**
through mitosis
*Question*
Answer the following question given this paragraph: El Nino and La Nina bring about dramatic changes in climate for a year or two. In some locations, one brings rain and the other brings drought. In California, for example, El Nino years are full of snow and rain. La Nina years tend toward drought. These variations can bring tremendous changes to living creatures. Humans are also affected; for example, erosion from storms may be very high some years. Q: What kind of weather change do la nina years usually bring? Choices: - heat - Mass amounts of snow - moisture - drought A:
**Answer**
drought