What is internal and external stimulus? What is an example of each?

Answer:A internal is situated or existing in the interior of something Example:No country should interfere in another country's internal affairs

Answer:A external stimulus is a detectable change in the internal or external environment. Example: When a person sees a burger when hungry they stomach starts to growl

7 0

4 years ago

What happens when magma convection currents move in opposite directions?

Semenov [28]

Answer:

During the "magma convection currents", the plate tectonics are pulled apart from each other. This is because if the "magma convection currents" flow in opposite direction, the plates present floating on the molten magma also float apart, causing divergent plate boundaries.

The plate tectonics are responsible for the movement of continental plates. The molten magma present inside the earth acts as a vast ocean on which the plates move as sheets. So if currents flow away from each other they take the plates along with them too, forming great rift valleys.

7 0

3 years ago

What happens to a cell cycle when cancer occurs?

omeli [17]

Answer:

Cancer is unchecked cell growth. Mutations in genes can cause cancer by accelerating cell division rates or inhibiting normal controls on the system, such as cell cycle arrest or programmed cell death. As a mass of cancerous cells grows, it can develop into a tumor.

4 0

2 years ago

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