The most common exogenous pigment is carbon

________is a unique pigment used for Chinese traditional painting and calligraphy.

The name Red Square originates from the pigment of the surrounding bricks.

The iron-containing pigment in red blood cells that carries oxygen is called

Which of the following is not the characteristic of pigment epithelial cells. A: Derived from neuroectoderm B: Contains a lot of melanin particles C: Phagocytic function D: Storages vitamin A E: Can synthesize visual pigment

a pencil with a replaceable and mechanically extendable solid pigment core called a “lead” A:

Which of the followings is not a polyphenolic pigment ( ). A: Anthocyanins B: Flavonoid pigments C: Catechin D: Lutein

Which of the following pigments is a not endogenous pigment? A: hemosiderin B: lipofuscin C: bilirubin D: carotene

Usually, an excellent guest would be invited to dot the ______ with red pigment, symbolizing giving life to the lion.

Pigment cells of cephalopods are called ( ). A: pinacocytes B: odontophores C: chromatophores D: erythrocytes E: nautilophores