This question has two parts Use the information to answer Part A and Part B. People introduced the water hyacinth to the United States in 1884. It is a fast-growing water plant. It forms a dense mat of vegetation on the surface of bodies of water. Figure I shows the current range of water hyacinth Figure 2 is a projection of water hyacinth range in the year 2080, assuming that CO_(2) emissions and dimate conditions remain at their current values. Part A What will most likely happen to blodiversity in water ecosystems if CO_(2) emissions exceed projected values? It will increase. It will decrease. Part B Which two reasons support the correct answer from Part A? A. Native species will overpopulate. B. Less sunlight will get to native plants that live underwater. D C. Temperature increases will reduce the range of native plants. D. The population of some native species will decline of become extinct.

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This question has two parts Use the information to answer Part A and Part B. People introduced the water hyacinth to the United States in 1884. It is a fast-growing water plant. It forms a dense mat of vegetation on the surface of bodies of water. Figure I shows the current range of water hyacinth Figure 2 is a projection of water hyacinth range in the year 2080, assuming that CO_(2) emissions and dimate conditions remain at their current values. Part A What will most likely happen to blodiversity in water ecosystems if CO_(2) emissions exceed projected values? It will increase. It will decrease. Part B Which two reasons support the correct answer from Part A? A. Native species will overpopulate. B. Less sunlight will get to native plants that live underwater. D C. Temperature increases will reduce the range of native plants. D. The population of some native species will decline of become extinct.

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Part ATo answer this question, we need to consider the effects of increased \(\mathrm{CO}_{2}\) emissions on climate and subsequently on ecosystems. Higher \(\mathrm{CO}_{2}\) emissions are likely to lead to increased global temperatures, which can alter habitats and the balance of ecosystems. In the case of the water hyacinth, which is already a fast-growing invasive species, warmer temperatures could potentially allow it to spread even further and more rapidly. This would likely lead to a decrease in biodiversity as the water hyacinth forms dense mats that can choke out native plants and disrupt the habitat for native aquatic species.Answer for Part A: It will decrease.Part BNow, let's look at the reasons that support the answer for Part A:A. Native species will overpopulate.This is incorrect because the introduction and spread of an invasive species like water hyacinth typically leads to a decrease in native species populations, not an overpopulation.B. Less sunlight will get to native plants that live underwater.This is correct because the dense mats formed by water hyacinth can block sunlight from reaching native aquatic plants, which rely on sunlight for photosynthesis.C. Temperature increases will reduce the range of native plants.This is also correct. Increased temperatures can alter the habitats of native species, making them less suitable for their survival. Some species may not be able to adapt or migrate to more suitable habitats quickly enough, leading to a reduction in their range.D. The population of some native species will decline or become extinct.This is correct as well. The spread of invasive species like water hyacinth can outcompete native species for resources, leading to a decline in native populations and potentially causing some species to become extinct.Answer for Part B: The two reasons that support the correct answer from Part A are B and D.

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