Which pigment causes the skin colour ? Can we change the skin colour ?

Animal that can change its colour is

Which pigments are responsible for the brown and red colour of brown algae and red algae?

Why does old car bumper change colour ?

Why does old car bumper change colour?

How do we percieve different colours?

State whether the following statements are true or false : ( If a statement is false , correct it and rewrite it.) : When red light falls on the eyes ,the cells responding to red light get excited more than those responding to other colours and we get sensation of red colour.

(a). Assertion (A) is true, Reason (R) is also true, Reason (R) is the correct explanation for assertion (A). (b). Assertion (A) is true, Reason (R) is true, Reason (R) is not the correct explanation for Assertion (A). (c). Assertion (A) is true, Reason (R) is false. (d). Assertion (A) is false, Reason (R) is true. Q. Assertion (A): to a solution of potassium chromate, if a strong acid is added, it changes its colour from yellow to orange. Reason (R): The colour change is due to the change in oxidation state of potassium chromate.

Apart from chlorophyll, algae have several other pigments in their chloroplast. What pigments are found in blue-green, red and brown algae that are responsible for their characteristic colours?

Protein rich diet not cause much change in constituent of which substance in urine