Why do scientists compare the DNA of bananas, worms, fruit flies, and humans? How can this information be helpful?

Many organs are involved in the processes of keeping the blood and the body clean. when poisonous or harmful substances are in the blood, they are absorbed by the and released in a less harmful form. when wastes are present in the blood, they are filtered out and removed from the body by the

What did hunter gathers do to alter the environment?

What maintain homeostasis when a persons internal body temperature is 97.5°f