Which of these stimulates ca+ channels to open?
a. ap 1
b. ap 2

violet light has a shorter wavelength than blue light. violet light is scattered more than blue light. however, the human eye is less sensitive to violet than to blue. as a result, we perceive a blue sky instead of a violet sky.

answer:

87 yeet friends :)

Explanation:

Also plz help

Explanation:n

keratin.

collagen.

elastin.

Explanation:

Elastin and collagen are found in the dermis and are produced by fibroblasts, are responsible for giving firmness, strength and elasticity to the skin.

Keratin is in the epidermis, this protein helps to preserve or recover the elasticity and firmness of the skin, also helps in cell regeneration and support the tissue where it accumulates.