A4-year-old boy with a tracheostomy tube is experiencing respiratory distress. he has intercostal retractions, a heart rate of 80 beats/min, and an oxygen saturation of 85%. during his attempts to breathe, a gurgling sound is heard in the tracheostomy tube. you should:

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

Where does oogenesis take place ? seminiferous tubules fallopian tubes ovaries uterus

Abiology teacher asks students to give examples of genetic variations that support the idea that changes in a population’s environment affect genetic variation. which is the least supportive example? a.changes in genetics in human populationsb.antibiotic resistance in bacteria populationsc.pesticide resistance in garden insectsd.changes in the color of the peppered moth population in england