Mutations

a) cannot be caused by the environment
b) are the main sources of microevolution
c) can be discovered through genetic testing
d) are always harmful to an organism

Mutations .

A) cannot be caused by the environment

B) are the main sources of microevolution

C) can be discovered through genetic testing

D) are always harmful to an organism

Explanation:

Gene or molecular mutations:

They are the mutations that alter the nucleotide sequence of DNA.

The answer is: C) can be discovered through genetic testing.

b.have there own function.

when the displaced particles are perpendicular to the direction the wave travels, is called a transverse wave, whereas in longitudinal wave the displace practices are parallel to the direction of the wave.

in the given image:

first image shows - longitudinal wave

second image shows - transverse wave

third image shows - longitudinal wave

fourth image shows - longitudinal wave