In a controlled experiment, the variable that is changed to test the hypothesis is called the: a. dependent variable b. independent variable c. responsive variable d. controlled variable

4the indian leaf butterfly has traits that allow it to resemble a leaf. the bright colors of the monarch butterfly indicate that the butterfly tastes bad and can be poisonous. how does the appearance of these butterflies them to survive? f the indian leaf butterfly is able to avoid predators while the monarch butterfly warns predators away. g. the indian leaf butterfly frightens predators away while the monarch butterfly poisons predators before they can eat it. h both butterflies rely on camouflage to avoid predation. j both butterflies cooperate with one another to avoid predation.

What was darwins theory of common decent

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous