Aclade is a fancy word for any group phylogenetic tree that includes an ancestor and all of its descendants. a simplified dinosaur tree is to the right.

One function of the immune system is to attack the foreign cells to protect the body. in organ translate , the body recongnizes that the new organ is made of foreign cells. wha kind of medicine would you give a patient to increase the chances of transplate success

Overtime the pond slowly becomes more acidic due to the release of chemicals from a nearby factory. which of the organisms would most likely survive the change to their environment?

Which test would show positive results for orange juice