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eyespot
Kathryne Hintz
Wiki User
∙ 9y agoMembers of the Kingdom Protista detect light using a photoreceptor, near their anterior ends, which senses the light level in the organismâ??s environment. This is not a true eye, since it cannot make out image formations.
Wiki User
∙ 13y agothe cells of some protist have an eyespot that is used to sense light.
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Are instruments able to detect the light?
Yes. Specialized instruments called photodetectors are able to sense light.
How sensors are used?
Sensors are used to detect things, such as motion, light, or color.
What products use Light Dependent Resistors?
security lights use resistors as the light out side falls the security light turns on and as it gets lighterbout side the light dimms and turns off, in bmw's the resistors are used to detect when the lights should come on as light gets brighter the car lights turn off.
What do robot sensors do?
Robot sensors detect different things and send different amounts of electricity to the Robot's controller board to tell their findings. Then the controller board uses these different amounts of electricity to interact with its surroundings. Example: Lets say you have a robot that is made to follow light. Lets say your robot has 3 light sensors. One in the front of your robot one on the right and one on the left side. The sensors will detect how much light is on the front, right, and left sides and send this data to the controller board. Then the controller board uses this data to tell the robot with direction to go.
What is the difference between pir movement sensor and ir sensor?
Passive simply means that the unit does not emit IR light, but does detect it. All warm things emit some degree of IR. a PIR motion detector senses the difference between a warm body and the cold background. Active IR emits IR light to illuminate an area to be "seen" with it's CCD that is sensitive to IR. Most new Sony camcorders use active IR for "night vision". IR alone, with no modifier, simply refers to the spectrum of light known as Infra Red, which is slightly above human's vision range.
How do scientists use source of energy to classify organisms into their kingdoms?
Scientists classify organisms into different kingdoms based on their source of energy through their mode of nutrition. Organisms that obtain energy from the sun through photosynthesis belong to the kingdom Plantae, while those that obtain energy from consuming other organisms belong to the kingdom Animalia. Organisms that obtain energy from breaking down organic matter or inorganic compounds belong to the kingdom Fungi or Kingdom Protista, depending on other characteristics.
Why cant humans detect infrared light?
They can. While human eyes can not "see" infrared light, humans can detect this light as "heat" on the surface of the skin.
What can ocelli detect?
Tiny eyes (also called ocelli) that can detect light and dark are located on top of the spiders cephalothorax. They also can detect different wavelengths and intensities of light.
What is needed to detect light?
eyes
What do you need to detect light?
this depends on the situation. normally all one would need is a thermal sensor in order to detect light
How much of the electromagnetic spectrum can your eye detect as light?
visible light
Why is it necessary to detect radiation from space and not just light?
Light is radiation.
What eye cell does not detect color?
The rods in the retina of the eyes are sensitive to low levels of light and movement. The cones are the ones that are sensitive to color and intensity, so the rods do not see color.
How do you detect lighting?
With a ultraviolet light detector.
What helps euglena detect light?
eyespot
What do your suprachiasmatic nuclei help you to detect?
light
Can guard cells detect light?
yes
