Why do children in comparison with adults represent a group that is especially vulnerable to environmental hazards? choose the incorrect answer. a. they may be exposed more often to toxins in the outdoor air. b. they spend more time indoors. c. they may be exposed more often to toxins in the soil. d. they may inadvertently ingest toxic substances e. their immune systems are still developing?

Drag the correct tiles to the image. not all tiles will be used. the diagram is a schematic representation of the electron transport mechanism in mitochondria. label the diagram to complete the model.

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

Natural selection changes allele frequencies because some survive and reproduce more successfully than others.