Look at the image of a muscle fiber. Muscle fiber is shown. Actin and myosin are shown on the fiber. Which is represented by the image? smooth muscle cardiac muscle actin and myosin activated sacromere and tendon

uh two lol

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.

"do a testcross with a homozygous recessive plant."