Biology

Cigarette smoke can affect the white blood cells that reside in our lungs, whose function is to

Started by TFauchery

Labored breathing, coughing, lung infections, and respiratory failure are characteristics defining

Started by future617RT

The ________ is a passageway shared by both food and air.

Started by TVarnum

Within the lungs of humans, gas exchange occurs across

Started by ahriuashd

What is the name of the muscle that helps move air in and out of the lungs?

Started by vHAUNG6011

Which is a function of the nasal cavities in humans?

Started by colton

Which option correctly lists the direction carbon dioxide travels as it leaves the body of a human?

Started by stock

Which animal requires the largest and most complex lungs proportional to its overall body size?

Started by clmills979

Evolutionary adaptations for survival on land produced tetrapods, which later evolved into

Started by Redwolflake15

The evolution of aquatic vertebrates that could live on land likely involved an intermediate species that

Started by CBme

The tracheal system of an insect is most like which of the following?

Started by bio_gurl

Which of the following statements regarding breathing and circulation in insects is false?

Started by cartlidgeashley

In the countercurrent exchange system of fish gills,

Started by darbym82

Gills are unsuitable for animals living on land because

Started by berenicecastro

One advantage of gas exchange in water is that

Started by Coya19@aol.com

Which of the following statements about fish gills is true?

Started by Capo

The organization of blood and water flow in a fish's gills increases the fish's ability to

Started by danielfitts88

Which of the following is likely to have the lowest concentration of O2?

Started by casperchen82

Which of the following organisms has a respiratory system that does not require assistance from a ...

Started by leo leo

Animals that effectively use their body surface for gas exchange must

Started by mynx

During gas exchange, body cells

Started by naturalchemist

The reason animals need a continuous supply of oxygen is to

Started by dakota nelson

Which of the following animals would most likely be able to exchange gases effectively when placed ...

Started by lindiwe

After reading the paragraph below, answer the questions that follow.You are trying to cut down on ...

Started by asd123

After reading the paragraph below, answer the questions that follow.You are trying to cut down on ...

Started by mrsjacobs44