Plants require nitrogen and phosphorus but cannot efficiently absorb these nutrients from the soil. instead, they obtain the nutrients through fungi that live in their roots. in return, the fungi have access to carbohydrates manufactured by the plants. without the fungi, plants would not be healthy and abundant, and the food supply of all of the organisms in the ecosystem would be in danger. this is an example of how relationships maintain balance within an ecosystem.

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a. coral reefs because of the loss of the symbiotic algae living within their bodies b. penguin populations because the fish they eat will move into warmer waters c. mountain-dwelling birds because rising sea levels will relocate their food sources d. large cats in the rainforest because of decreased habitat loss for their prey

Consider the following planned experiment. factor experimental group control group light exposure tots of sun tots of sun amount of water weekly weekly type of soil nutrient rich nutrient rich size of pot large which variable is being tested in this experiment? small a. size of pot b. type of soil c. light exposure d. amount of water

What do we call the process when two dominant alleles are expressed and do not blend? a. incomplete dominance b. codominance c. multiple alleles