Answer:
list of three devices are 1st phone 2nd doorbell 3rd alarm clock
Explanation:
if these devices will not produce sound then we can not do our work properly these are very useful for everyday life
The statement which is false about the intergumentary system is option D. "Keratin is the pigment responsible for skin color."
Even though the skin color of human beings is affected y different substances, the pigment melanin is responsible for it. Melanin is produced within the skin in cells known as melanocytes and it determines of the skin color of darker-skinned humans.
For instance, the skin color of those who have light skin is determined primary by the bluish-white connective tissue placed beneath the dermis and by the hemoglobin which circulates in the veins of the dermis.
The Object Masses, will affect the force of gravity between the two objects, and the distance between the objects will affect the force of gravity between the two objects.
RNA stands for ribonucleic acid which is one type of nucleic acids. So nucleic acid has RNA.