Answer:
A group of cells make a tissue, a group of tissues make and organ, a group of organs make an organ system, and an organ system makes a organism.
Blood needs to flow faster around the body in order to supply the muscles with oxygen for respiration
Answer: The correct answer is-
an agent that causes a mutation in DNA.
Mutagen is an agent or a substance that causes permanent change in the genetic material of living organisms ( DNA, deoxyribonucleic acid). This process is called mutation.
A mutagen can be a chemical, physical or biological agent that causes mutation in the DNA.
Example- Physical agents such as -
- Ionizing radiations like alpha particles, gamma rays, X-rays that brings break in the DNA and cause other damages.
- Ultraviolet radiations that creates pyrimidine dimers ( T=T) and causes replication errors if damage is not repaired.
C upcoming would be the closest to future
