The picture shows Poecilia reticulata, a type of guppy fish, found in a large variety of tropical environments. In some locations, populations of these fish have evolved over generations to become less vibrant in color and less spotted. What is the most likely cause of this variation?
A
ecological succession, where individual guppy fish had less vibrant colors and formed a new population

B
artificial selection, where individual guppy fish were attracted to, and reproduced with less vibrant guppy fish

C
natural selection, where the less vibrant guppy fish avoided predators and passed on the genes to their offspring

D
reproductive isolation, where the population of less vibrant guppy fish only reproduced with individuals in one location

Which would happen if more forests were cut down? a. the nitrogen cycle would be stopped b. nitrogen would be fixed by bacteria more quickly c. the amount of co2 in the atmosphere would increase d. fossil fuels would build up in the soil c the amount of co2 in the atmosphere would increase

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

Which worm has eyespots that are used to detect light? a fluke b marine worm c planarian d tapeworm