The organism at point W is a bony fish. The organism at point X is a dinosaur. The organism at point Y is a trilobite. The organism at point Z is an amphibian. This diagram suggests that A.) trilobites are the youngest living creatures on the planet.
B.) in this region dinosaurs lived after the bony fish.
C.) amphibians are common ancestors of dinosaurs and trilobites.
D.) dinosaurs became extinct before the evolution of bony fishes.

Each trait of a plant is determined a. an allele b. one gene c. a pair of genes d. one dominant gene

What is a codon and where is it found

What is the difference between the conducting zone and the respiratory zone of the respiratory system? the conducting zone is a series of cavities and tubes that move air to the respiratory zone where gases exchange with the bloodstream. the conducting zone exchanges gases between the lungs and the alveoli and the respiratory zone is a series of cavities and tubes that move air to the conducting zone. the conducting zone moves oxygen into the cells and the respiratory zone takes carbon dioxide away from the cells. the conducting zone moves oxygen into the bloodstream and the respiratory zone takes carbon dioxide away from the bloodstream.