What do book lungs, gills, trachea and lungs have in common? Question 25 options:

They are bathed in fluid.

They are designed to decrease surface areas.

They expel oxygen from the blood or hemolymph and move carbon dioxide into the blood or hemolymph.

metamorphism is the change of minerals or geologic texture (distinct arrangement of minerals) in pre-existing rocks (protoliths), without the protolith melting into liquid magma (a solid-state change). the change occurs primarily due to heat, pressure, and the introduction of chemically active fluids. i hoped i !

lizards have adapted to life in the desert. some desert lizards have toes with spiny scales to them run across the sand without sinking. some use the sand to hide from predators, or to search for small animals that they prey upon.

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