What can be the cause of single gene mutation

Will mark brainliest. (20 points) many have pigments structures known as eyespots that detect direction of light. a. b. archaebacteria c. protists d. none of the above

What is any method of measuring the age of an object or event in years, such as using atomic half-life?

To confirm when to exclude children from school it’s recommended that you refer to guidelines from which of the following organizations