Why are newly mutated influenza viruses especially harmful to humans? They can be transmitted through water as well as air.

They're not recognized by the immune system.

They're resistant to available antiviral treatments.

They can pass from one animal species to many others.

Why does the skin of your finger shrink when you wash clothes for a long time?

During which phase does earth see more than half of the moon's surface? 1)first quarter2)third quarter3)waxing gibbous4)waning crescent

Drag each tile to the correct box. the body monitors the levels of oxygen in the blood to regulate breathing. isabel is running in a marathon and is near the finish line. she feels out of breath. how will her nervous system work to generate a reaction? arrange the tiles in chronological order. isabel's breathing rate increases. sensory receptors in the arteries detect low oxygen levels. the brain sends signals through motor neurons. sensory neurons generate an impulse. the central nervous system relays an impulse to certain brain regions.