Answer:
1.
Explanation:
A signal from one gland to another would not be intercellular, as "inter" means inside. This means intercellular would stand for "Inside the Cell"
Answer:
Mammals first appeared
Explanation:
The dinosaurs became extinct one million years after the Cenozoic era started. The mammals first appeared as the modern culture first appeared in that era.
When cell division is not regulated it can cause a malignant rumour called cancer , radiation is used in chemotherapy to kill the cancer, tumoutsd can also be benign
Saturn and Jupiter have attracted as much similar gas as they could, to form two biggest gas giants in our solar system. But they have done things in different ways and caused differences. The first difference is the planets' densities. Saturn is significantly less dense than Jupiter