Wetlands support a large number of animal species. Recently, chemical dumping has caused a huge decrease in the fish population.
Because of this, we would expect to see a A) decrease in migratory bird population, like the ducks.
B) increase in the mid-level consumers, like the raccoons.
C) decrease in insect and insect larva, like the dragonflies.
D) increase in top level predators, like the bears and cougars.
I think the answer would be b; animals that are lower on the food chain are normally herbivores; making the decrease of fish not an affect any of raccoons. They, therefore, will increase.
Answer: A) decrease in migratory bird population, like the ducks.
Explanation:
Wetlands are the shallow lands which are occupied with the water either seasonally, temporary or permanently. It acquires water from surface runoff, rain water, water from water bodies like lakes, rivers and ponds.
According to the given situation, dumping of chemical into the wetland will likely to contaminate the water which will lead to the decrease in the fish population due to toxicity of chemical. Due to this we would expect to see a decrease in migratory bird population, like the ducks. This is because of the fact that migratory birds will receive dead and toxicated fishes as food. This will lead to the decline in the migratory birds population.
In the small intestine, villi are found present. These villi which appear like a finger-like tissue structure are about 0.5–1.6mm in length in human beings.They have mucosal cells that help in absorption of nutrients. A villus has several microvilli, which increases the surface area of the intestinal wall for faster absorption of nutrients.
Destruction of animals' habitats. Some examples of this are... tree logging, slash and burn farming, and deforestation. Humans also hunt animals to extinction either for sport or food.
