adesiredWish

relaxation contraction adductor muscles myofibril sarcoplasmic reticulum t- tubules sarcoplasm z-line smooth muscle cardiac muscle skeletal muscle undulations ameoboid movement flagella cilia amoeba myosin actin contractile proteins streaming movements all or none principle ganglia efferent nerve afferent nerve motor neurons sensory concentration gradient resting membrane potential action potential neurons nerves communication paddling swimming true flight gliding leap brachiation aerial arboreal cursorial fossorial speed hopper quadrepedal saltation leaping jumping movement hiding communal defense trickery playing dead motion masquerade olfactory camouflage disruptive coloration warning calls mimicry camouflage attacks warding off nocturnality crypsis adaptations antipredator protection defense biarmosuchia dicynodontia theriodontia therocephalians gorgonopsians mammaliaformes mammals cynodonts therapsids pelycosaurs amniota integumentary systems