Question

which specialized structures allow prokaryotes to move quickly through their environment?
pili
mitochondria
nuclei
flagella
alveoli are microscopic air sacs in the lungs of mammals. which statement best describes how the structure of alveoli allows lungs to function properly?

Explanation:

Pili are for attachment, mitochondria and nuclei are not present in prokaryotes in the complex form as in eukaryotes. Flagella are long - whip like structures that enable prokaryotes to move quickly. For alveoli, their structure with thin walls and large surface area allows for efficient gas exchange in the lungs.

Answer:

1. D. flagella
2. (No options provided for the alveoli question to give a full answer. But conceptually, alveoli have thin walls and large surface area for efficient gas - exchange)