Which is the correct order of organization for chordates?
a. eukarya, animalia, chordata
b. eukarya, arthropoda, animalia
c. archaea, arthropoda, animalia
d. archaea, chordates, animalia

When you run, you begin to breathe heavier and faster. your heart beats more quickly, bringing more oxygen to your cells. which organ systems are working together here?

Suppose you are provided with an actively dividing culture of e. coli bacteria to which radioactive thymine has been added. what would happen if a cell replicates once in the presence of this radioactive base?

Why does sexual reproduction result in more genetic variation in a species