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Light enters the eye through the cornea, passes through the lens which focuses the light onto the retina. The retina then converts the light into electrical signals that are sent to the brain via the optic nerve for processing, allowing the child to see the ball.

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1y ago

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What type of circuits allow the movement of electric energy?

Open circuits and closed circuits both allow the movement of electric energy. In an open circuit, electric energy cannot flow because the circuit is incomplete. In a closed circuit, electric energy can flow because the circuit is complete and forms a continuous pathway for the energy to move.


How does a 3 way air solenoid work?

A 3-way air solenoid uses an electromagnet to control the flow of air in a pneumatic system. It typically has three ports: an inlet, an outlet, and an exhaust. When the solenoid is energized, it opens one pathway for air to flow from the inlet to the outlet. When de-energized, it closes that pathway and opens another to allow air to exhaust. This allows the solenoid to control the direction of airflow in the system.


Why do most firehouses have circular staircases?

Circular staircases in firehouses are designed for practical reasons - they allow firefighters to quickly and easily access different levels of the building, especially when carrying heavy equipment or injured individuals. The circular shape also helps reduce the risk of tripping and provides a clear pathway during emergencies.


How does a switch control a parallel circuit?

In a parallel circuit, each branch has its own pathway for current to flow. A switch placed in one branch of the circuit can control the flow of current through that specific branch only, without affecting the other branches. When the switch is closed, it allows current to flow through that branch; when it's open, it blocks the flow of current.


Why is a stem of a thermometer glass and why is it designed this way?

The stem of a thermometer is typically made of glass to withstand temperature changes and allow for easy reading of the temperature scale. The design of the stem helps to ensure accurate measurement of temperature by allowing the expansion and contraction of the liquid inside without breaking the glass. It also provides a clear pathway for the liquid to rise or fall in response to temperature changes.

Related Questions

How does fer-mention allow glycolysis to continue?

Glycolysis is followed by a different pathway. The combined process of pathway and glycolysis is called fermentation.


What is a pathway for a current?

Any path that will allow charge to move. Usually it means a good conductor like copper or other metals.


What are materials called that do not allow a easy pathway flow of electricity?

They are usually called semi-conductors.


How can I effectively use cement to create a durable pathway through a grassy area?

To effectively use cement to create a durable pathway through a grassy area, you should first prepare the ground by removing the grass and leveling the area. Then, pour and spread the cement evenly to form the pathway. Use a trowel to smooth the surface and add a non-slip finish if desired. Allow the cement to cure properly before using the pathway.


Where to get a online mortgage calculator?

It's easy to calculate and re-figure your mortgage payments. Bankrate.com provides and online calculator that will allow you to figure your payments if you are considering refinancing.


Which of the following choices is true about ergogenic aids?

They allow an athlete to exercise longer.


What was the importance of feudalism following the fall of rome?

it happened to allow the castle ages


Which of the following is an example of an authoritarian government?

A government that does not allow normal citizens to participate


The cell connections that allow substances to pass directly from one cell into another are called?

gap junctions. These junctions are channels between adjacent cells that allow for direct transfer of ions and small molecules. This communication pathway is important for coordinating cellular activities.


What does a circuit board do?

A circuit board is the pathway for electrical currents to path through to send messages to other connectors. A circuit board consists of capacitors and resistors which allow and resist electric signals.


What do circuit boards do?

A circuit board is the pathway for electrical currents to path through to send messages to other connectors. A circuit board consists of capacitors and resistors which allow and resist electric signals.


Which of the following NTFS folder permissions allow you to delete the folder?

Effective permission: delete