Answer:
The correct answer is: Sensing capability.
Explanation:
- The inability of a person to detect red colour is known as Protanomaly.
- Humans are able to sense colours due to the presence of cone cells in the retina of the eye.
- Cone cells are specialised for detecting colour.
- A person affected with Protanomaly, lacks the red colour detecting cone cells in their retina.
- Their brain is unable to understand red colour because the sensory impulse for recognising the red colour is not send from the retina of the eye to the brain through the optic nerve due to the absence of the red colour detecting cone cells.
- Hence, Marcus is colour blind as he lacks the capability of Sensing light in the red region of the spectrum.
Answer:
Perhaps the most amazing thing about mitosis is its precision, a feature that has intrigued biologists since Walther Flemming first described chromosomes in the late 1800s (Paweletz, 2001). Although Flemming was able to correctly deduce the sequence of events in mitosis, this sequence could not be experimentally verified for several decades, until advances in light microscopy made it possible to observe chromosome movements in living cells. Researchers now know that mitosis is a highly regulated process involving hundreds of different cellular proteins. The dynamic nature of mitosis is best appreciated when this process is viewed in living cells.
Explanation:
The correct answer are valves. As lymphnodes become larger and deeper they turn into lymph vessels that develop one-way valves. These valves prevent the back flow of blood throughout the vessel and ensure that the lymph only flows in one direction.
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Infrared has a lower frequency than ultraviolet light.
