The alveolus has a large surface area to allow for the largest amount of gas exchange. It also has a wall that is only one cell thick to allow diffusion to occur rapidly. Hope this helps x
C. octopi are invertebrates and fish are vertebrates.
Answer:
Butterflies , Bees , Bats , Humming Bird , Lemurs and Honey Possum are some examples of flowers which are pollinated by Animals.
<u><em>Hope it helps you!!!</em></u>
C.)Pleiotropy is the effect of a single gene on more than one characteristic.....