Describe what the nitrogen cycle is, why it is important to plants, and one way in which nitrogen compounds are formed.

Indica el nombre y la fucion de los vasos sanguineos que entran y salen de los riñones

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

Can a trait be both polygenic and have multiple alleles? explain why or why not.