(Q).
Wings are part of the exoskeleton and attached to the thorax, and insect wings are attached to the dorsal side of their thorax. Given these facts, what side of an insect are wings attached to among the following options: - white - dorsal - protected - abdomen - elytra - three - strong - tail
(A).
dorsal

(Q).
Amphibians have permeable skin that easily absorbs substances from the environment, and some substances are harmful to the body and block biological systems. Given these facts, what can amphibians permeable skin do among the following options: - Display wealth - Make money - resistance - Help them fly - Vibrates - Harm them - It expands - Damages them
(A).
Harm them

(Q).
Mutations are essential for evolution to occur, and evolution Evolution means change over time. Given these facts, what is essential for change over time among the following options: - Light - Chemical energy - Essential oil. - evaporation - Currency. - Clocks. - colors - Mutations.
(A).
Mutations.