Which of the following do the food web and food chain represent in an ecosystem?
a. the movement of energy
b. the number of animals
c. the movement of animals
d. the number of consumers

The picture shows a fishing technique called trawling. how might trawling affect marine biodiversity

What causes darkening of the skin as melanin production increases

The graph below compares the rates of reaction of a burning candle and an exploding firework. comparing chemical reactions what can you conclude from the graph? the reaction that causes a firework to explode requires less energy to start, and occurs more rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires less energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs less rapidly than the reaction that causes a candle to burn. the reaction that causes a firework to explode requires more energy to start, and occurs more rapidly than the reaction that causes a candle to burn. mark this and return