Choose all the answers that apply. The heart ___.
pumps blood to the body
has four chambers
is part of the cardiovascular system
is made of skeletal muscle
works with the respiratory system

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.

How did the research presented in the article affect scientists' understanding of the evolution of eukaryotes

The influenza virus cause the flu, but not other diseases. why?