The lungs of an individual with emphysema provide poor gas exchange due to the loss of alveolar walls. This exemplifies the need for a large for efficient gas exchange.

there’s no image attached but i can if you want: )

spiders belong to a group of arachnids.

arachnids have the following traits :

they have two body parts.

they have eight legs unlike insects which have 6 legs.

they have no wings.

these traits distinguish them from insects.

the information that antonio is doubting us the statement that spiders differences are as a result of being first to evolve.

this is because the evolution of one species is independent of the other species.